The family was created by the disciples of the Magician of the Third Magic seeking to replicate their master's achievements. For such an old lineage, they surprisingly have no branch families. The family's Thaumaturgical Attribute is Flow and transfer of power, while homunculi created as the Lesser Grail have the additional trait of Wish-Granting – Spellcasting without possessing the knowledge of the spell itself. They skip the thaumaturgical process altogether and recreate miracles just through the use of magical energy but they are still bound to the limitations of the Magic Circuits.
About 1,000 years ago, the Einzberns started a quest to recover their lost miracle but eventually came to realize that they would never succeed by themselves and thus sought outside help. The result was the establishment of the Heaven's Feel ritual 200 years ago thanks to the help of the Makiri and the Tohsaka. They were the ones who built the Great Grail of Fuyuki and also the ones left in charge of producing a new vessel of the Holy Grail for each new Grail War.
They at some point came to be in possession of the Das Rheingold, the great treasure obtained by Siegfried by slaying the dragon Fafnir, specializing their magecraft around the "golden rule of the Rhine".
The Magecraft of the Einzbern family, which follows the Thaumaturgical School of Alchemy, is based on the creation and refinement of substances and the focus of their studies lies solely in the structural manipulation of precious metals. They know healing magecraft, but as alchemists this is used not for the sake of recovering the flesh of injured people, but rather to lessen the great burden felt by a subject who received an organ that was tempered with magical power and help his body get used with the newly transplanted organ. Because with the craft of the Einzbern magical energy becomes easily dispersible, buildings that sealed off with soil or stone are the ones most desired by them to install a workshop.
The Einzberns are well known for being excellent producers of homunculus. Even the ones that are regarded as failures by their creators are still superior to even 100 magi. The Einzbern homunculi have their functions determined during the design stages and are born with bodies and minds optimized to perform their purposes.
The current head of the Einzbern family is called Jubstacheit von Einzbern (or simply "old man Acht") and is the eighth person to rise to the position. He has been around ever since the time of Second Heaven's Feel thanks to methods of life prolonging and it has been said that under his leadership, the Einzbern changed its goals from "seeking the Holy Grail" to "winning the Grail War". He has a close relationship with the Talbot farm of early autumn Darjeeling and for years its tea has been only served to special guests.
Although their members can be dangerous when forced to fight, their single-minded specialization in Alchemy makes them ill-suited for battle. That is the reason why, up to the Third Heaven’s Feel, the Masters of the Einzbern were eliminated early in the battle. For the Fourth Heaven’s Feel, the family hired the services of an outsider, Kiritsugu Emiya, and presented him with the sheath of the holy sword which was excavated from Cornwall to serve as a catalyst to summon King Arthur. The whole family placed their expectations on him, but he ended up betraying them and destroying the Holy Grail.
The Einzbern family have a narrow view of Japan's culture. They live in Germany, in a mountain district near a certain river. The Einzbern castle at their homeland has a chapel and it was there that Kiritsugu summoned Saber. Since their dwelling is in a snowy mountain, the family does not have the custom of raising flowers. The climate of their territory is also not one suitable to produce liquor, but they nevertheless possess a brewery to supply alcohol, which is an ingredient necessary for their Magecraft.
As of the Fourth Holy Grail War, there are practically no true human members of the Einzbern Family, as a majority of the members who are accounted for are either Homunculi, Golems, or some other form of Demi-Human or Artificial Human.
In the Apocrypha universe, they didn't become discouraged by the fact that the Greater Grail was stolen in the Third Holy Grail War. Rather, they don't seem to have that kind of mentality in the first place (if they gave up, it would only be when even their greatest creation, Illyasviel, would fail to attain the Third Magic). They are doing everything they can with the belief that they might be able to reproduce that miracle and the Einzberns apparently were trying to make a new one. Accordingly, they have come to reluctantly have relationships with other magi despite their insular and unsociable nature, and the Musik family took advantage of their confused state of affairs in order to receive a portion of their homunculi craft. However, what the Einzberns taught was merely the equivalent of giving a toy to a child, so it was not much of a problem for them. The Musik family concealed the fact that they were part of the Yggdmillennia clan, but naturally the Einzberns know about it. However, the Greater Grail was formed by taking apart the only successful Justeaze-model homunculus, so the Einzbern agreed to cooperate with them in case they should manage to activate one. The Einzberns are in the midst of struggling to make a new Greater Grail under the excuse “It was stolen, so we’ll just make a new Holy Grail”. Fortunately, in the “Apocrypha” world, Kiritsugu Emiya won’t end up becoming involved with the Einzberns, so their greatest work Illyasviel will never be born. As long as she isn’t born, the Einzberns will never despair.
- Justeaze Lizrich von Einzbern (Head from over 200 years ago)
- Jubstacheit von Einzbern (Eighth Head)
- Einzbern Master - Justeaze-late model Homunculus
- Irisviel von Einzbern - Justeaze-late model Homunculus
- Illyasviel von Einzbern - Justeaze-late model Homunculus (Possibly Ninth Head)
- Leysritt - Homunculus
- Sella - Homunculus
- Fillia - Homunculus
- Unnamed Einzbern Tuner
- Other worlds
- Irisviel (Dress of Heaven) (Greater Grail divided spirit) - Fate/Grand Order
- Irisviel von Einzbern - Fate/kaleid liner PRISMA☆ILLYA
- Illyasviel von Einzbern - Fate/kaleid liner PRISMA☆ILLYA
- Chloe von Einzbern - Fate/kaleid liner PRISMA☆ILLYA
- Leysritt - Fate/kaleid liner PRISMA☆ILLYA
- Sella - Fate/kaleid liner PRISMA☆ILLYA
 Fate/stay night [Unlimited Blade Works] Season 2 DVD Booklet Animation Elements p.19-27 [T]
• The origins of Einzbern
A factory originally created by the students of the magician who realized the third magic. Began in the year 1 AD.
They attempted to reproduce their master’s miracle, but couldn’t do it themselves, so as an alternate plan they tried to recreate a specimen identical to their master and have it reproduce the magic.
After nearly 900 years of effort, Justeaze—the homunculus who would come to be called the Winter Saint—was forged.
She was a model that strayed from what the magi had intended, created completely by accident, but her abilities were equal to or above those of their master.
The magi should have been elated about Justeaze, but they couldn’t be happy. After all, she was a mutation that was born regardless of their own techniques or skills.
Even if that specimen was to reproduce the third magic, that conclusion would be harder for them to bear than 900 years of failure.
The magi deperately attempted to create a homunculus that excelled Justeaze by their own techniques.
The artificial intelligence created to act as the castle’s central management—the golem Jubstacheit—was the pinnacle of their craft, and became the father of all homunculi created at Einzbern.
Justeaze succeeded at proving the third magic.
However, it was not cost-effective. Justeaze’s use of the third magic was like careful knitting. It would take several years to save just one person, making the salvation of the entire human race virtually unattainable.
In addition, while Justeaze herself did not age, her body was so frail it would take little to kill her, so she could not leave the castle.
Since her intelligence and mentality were also unaging, she did not develop at all. From an outside perspective, it was as if she was repeating a single day for all eternity.
If she were to leave the castle she would be freed from this “single day,” but the act of leaving the castle signified an easy death for Justeaze.
In the end, they accepted that humans could create something that surpassed humans, but not something that could save humans.
… Or perhaps they would not have failed if a miracle like Justeaze had not occurred.
The magi despaired the limits of their abilities. Some abandoned the castle, while others took their own lives.
The homunculi left at Einzbern were abandoned by their creators, but in their purity, they continued to operate the factory for the sake of the creators’ ideology—the salvation of humankind, the reproduction of a miracle.
From then on, all homunculi created at Einzbern were based off of Justeaze.
Jubstacheit created a humanoid terminal unit, and used it as the manager of Einzbern. Though by the end he operated even Acht (the eighth humanoid terminal), he did not possess a personality.
He only included the necessary “humanity” to operate the castle and reproduce the third magic into each of his humanoid terminals, and made them act like humans.
Jubstacheit is essentially an automaton that cannot progress, but continues operating in perpetuity. His way of existence is just like an old clock ticking away, being forgotten by people before running down.
• The great grail
Five hundred years after the magi departed from Einzbern, a model plan was devised for a wide-area operation device for the third magic using Justeaze.
Einzbern had determined that reproducing Justeaze was impossible.
Their plan of keeping Justeaze safe because she was a unique and valuable model switched to a plan to use that unique model to mass-produce miracles.
(This was not Jubstacheit’s plan, but a consensus of opinion within Einzbern. Because the homunculi were pure, they chose the method with the greatest probability of success. In fact, Jubstacheit was the only intelligence that voted against this.)
Justeaze could only use the third magic on one human over a period of decades. Therefore, using Justeaze as a frame, they would create a “greater” magic formula and save many humans at once.
The plan was to disassemble her magic circuits and replace them with a magic formula, creating a humanoid universe—the great grail.
But Einzbern alone could not start this project.
They were no more than dolls. They had no way to live in the outside world, and they couldn’t handle the complexity of human society.
To create the great grail and reproduce the third magic, they needed understanding and cooperative humans.
Then, in the year 1800, a guest arrived at the winter castle that had continued to produce homunculi.
Makiri Zolken. A magus who had devoted his life to eliminating all the evils of the world, the evils of humanity.
(At this point, Zolken was mostly disillusioned. He knew it was about time to give up, but calling on Einzbern was his last hope. He met Justeaze, and felt a complicated mix of emotions—hope towards fulfilling his ambition, jealousy at her ability to use the third magic, and pity for Justeaze’s eternal youth causing her to “repeat the same day.”)
With Makiri’s understanding and Tōsaka’s cooperation, Einzbern began to create the great grail.
However, once they started, they determined that Justeaze alone was not enough.
They could create a great grail. They could create its core. However, to operate it they would need vast amounts of magical energy, and a lesser grail to control it.
Makiri and Tōsaka devised a ritual to collect magical energy using Justeaze’s ability to connect with the root: the grail war.
Despite being unable to reproduce Justeaze, Einzbern created a lesser grail with similar abilities to hers.
After 10 years, the project was finally complete.
The grail war ritual was successful, and the great grail lit up.
But its first operation ended in dismal failure.
There was no flaw in the great grail itself.
The problem lay in the craftsmen and magi who participated.
Instead of using the precious magic reactor core for the sake of the whole planet, the magi killed each other out of a desire to use it for the sake of their own race or society.
Einzbern had been unable to understand the thought processes of the humans who operated the great grail.
• Irisviel and Illyasviel
Einzbern learned from the failure of the grail war and changed their plans.
Justeaze no longer existed.
While preparing to restart the great grail, they returned to their original goal and focused on creating a perfect homunculus.
As a result, they created Irisviel, a homunculus with the function of a lesser grail. They expanded on her further and Illyasviel, a homunculus that was the pinnacle of Einzbern’s technique, was born.
This is a digression, but separate from the winter castle is the tuners’ building (a small house), inhabited by a family of human magi, not homunculi.
Since the homunculi cannot negotiate with human society, the tuners went into town in their place and barter for needed materials. Traders, essentially.
Still, they are a talented magus family, and possess strong artistry. Humans without strong aesthetic sense could never take care of Einzbern, after all.
The tuner family’s numbers dwindled along with Einzbern’s decline, and in the end only one remained.
It seems he often worked in the castle as a butler, teaching the secluded, medieval-minded homunculi about the outside world.
It’s unknown what kind of conclusion that tuner chose after Illya lost and Jubstacheit shut himself down.
• In summary: so what is Einzbern?
A factory in which homunculi continued operating towards the ideals and goals humans had given them, after the magi had left.
Jubstacheit is something like the factory’s central management program. A monolith. Acht is his terminal.
Even after their creators had given up and died, the homunculi in the winter castle devoted themselves to making their masters’ dream come true.
What lies at the basis of the Einzbern factory and many discarded things is the purity of machines.
Imagine a doll that can speak to its owner, but only a few phrases.
“Hello,” “thank you,” “I’m sorry,” “good night”—“I love you.”
These reactions delight the buyer, but it’s clear that they will soon be disappointed.
“No matter what I say, the doll can only say predetermined phrases. It just keeps repeating that tired old ‘I love you.’ ”
Realizing that the love the doll speaks of is a false emotion, the buyer will likely discard it eventually.
But humans are the ones who see that as empty words and a manufactured fake.
Even if it doesn’t have a “heart,” even if it’s only repeating the same words, there are no lies in the actions of machines.
They innocently carry out the task they were given.
“I love you.”
Though abandoned, forgotten, and scorned as out-of-date dolls, they continue to carry out their mission, unchanged from the time they were designed.
Machines do not lose their worth when a newer model appears.
Their worth (life) ends when humans can no longer bear that purity.
- Fate/stay night - Heaven's Feel route - Day 06: beautiful (I) - Winter castle - Ilya (II)
Fate/Grand Order - Siegfried's My Room voice lines Das Rheingold... the accursed treasure. I had heard from a while ago, that now it is in the possession of alchemists hailing from Germany? If I am not mistaken, the name is.... Einzbern? It would be great if no curse had befallen to them, yet...
- Fate/stay night - Fate route - Day 13: infinity arms - You're my only star
- Fate/Zero Volume 2: The Mad Feast of Kings - Act 8 Part 5 - 103:11:39
- Fate/Zero Volume 3: The Scattered Ones - Act 9 Part 4 - 91:23:15
- Fate/hollow ataraxia - Heaven's Feel - 1/ Heaven's Feels Backnight I
- Fate/hollow ataraxia - 10/09 - Emiya's - Sugar candy teatime
 Fate/complete material III: World material - FAQ with Nasu: Characters, p.135
Q: Where did the Einzbern nobles get their narrow view of Japanese culture from? Did it come from their resentment of Kiritsugu?
Q: Where did the Einzbern nobles get their narrow view of Japanese culture from? (That Japanese people are a tribe of headhunters, and other terrible and weird prejudices...). Did it come from their resentment of Kiritsugu?
A: All foreigners are like that. (Secret Technique: Kinoko Reverse Discrimination)
 Fate/complete material III: World material - FAQ with Nasu: Characters, p.135
Q: Where does the main Einzbern family live? The “von” in the is supposed to be German, right?
Q: Where does the main Einzbern family live? The “von” in the is supposed to be German, right?
A: They live in Germany, in a mountain district near a certain river.
- Fate/Zero Volume 1: The Untold Story of the Fourth Holy Grail War - Act 1 Part 2 - 282:14:28
- Fate/Zero Volume 1: The Untold Story of the Fourth Holy Grail War - Act 1 Part 5 - 270:08:57
- Fate/hollow ataraxia - Other - Einzbern Castle - Memory
- Fate/hollow ataraxia - 10/08 - Emiya's - Iris' storehouse
- Fate/hollow ataraxia - Night - Choice sake - proof of the wild
 Fate/Apocrypha material - Encyclopedia: Einzbern [Others], p.148 [T]
One of the Three Families that established the Fuyuki Holy Grail War. The family that lies at the center of events in “Fate/stay night” and “Fate/Zero” (Writer: Urobuchi Gen).
In “Apocrypha”, they didn’t become discouraged by the fact that the Greater Grail was stolen in the Third Holy Grail War… rather, they don’t seem to have that kind of mentality in the first place (if they gave up, it would only be when even their greatest creation, Illyasviel, would fail to attain the Third Sorcery), and they are doing everything they can with the belief that they might be able to reproduce that miracle. Accordingly, they have come to reluctantly have relationships with other magi despite their insular and unsociable nature, and the Musik family took advantage of their confused state of affairs in order to receive a portion of their homunculi craft. However, what the Einzberns taught was merely the equivalent of giving a toy to a child, so it wasn’t much of a problem for them.
The Musik family concealed the fact that they were part of the Yggdmillennia clan, but naturally the Einzberns know about it. However, the Greater Grail was formed by taking apart the only successful Justeaze-model homunculus, so the Einzbern agreed to cooperate with them in case they should manage to activate one.
 Fate/Apocrypha material - Encyclopedia: The Three Families [Others], p.166 [T]
The Three Families [Others]
In “Apocrypha”, the Three Families are the magi who constructed the Fuyuki Holy Grail War… in other words, the Einzberns, Tohsaka and Makiri.
Just as alluded in the light novels, Makiri (Matou) Zouken fought fiercely against Darnic during the Third Holy Grail War, but became practically crippled due to the shock of the Greater Grail being stolen. The family wasn’t blessed with a successor either, so their future as magi has been completely shut.
The Tohsaka gave up on the Greater Grail, and now seek a new path in becoming one with the universe with Chinese Kenpou while learning magecraft. The twin-tail daughter of the family might also end up becoming the founder of a “completely new martial arts that combines magecraft and Chinse Kenpou” by the time she becomes a high school student. However, she never imagined that her younger sister who was adopted by distant relatives would come visit her in Japan after becoming a pro-wrestler with unimaginably nice proportions and forming a tag team with a drill-roll-haired girl…!
The Einzberns are in the midst of struggling to make a new Greater Grail under the excuse “It was stolen, so we’ll just make a new Holy Grail”. Fortunately, in the “Apocrypha” world, a certain dead fish-eyed mercenary won’t end up becoming involved with the Einzberns, so their greatest work Illyasviel will never be born—therefore, as long as she isn’t born, the Einzberns will never despair… Is that really fortunate?
- Fate/stay night - Fate route - Day 11: DragonSlay - Replay of the legend