Known as an eccentric Vampire who held interest in humans, he sought to increase his worldly influence through non-vampiric methods after the First World War as part of a rapid rise in the last few hundred years to become one of the world's leading conglomerates. Most recent rumors about him said that he had recently constructed buildings in the celebrity town Monaco and started running a weekly casino boat, Fem's Casa (フェムの船宴(カーサ), Femu no Funaen (Kāsa)?), where he challenged other visitors on a weekly basis. Jester Karture refers to him as the leader of a pro-humanity faction among Dead Apostles.
At some point, Van-Fem killed one of Francesca's bodies, an encounter that was one of Francesca's most memorable deaths. In the distant past, he knew Mesala Escardos, and refers to him as an "old friend".
His voice is described as elegant but giving an impression of incredible depth.
Van-Fem, nicknamed the Dark Lord of the Business World (財界の魔王, Zaikai no Maō?), is a "man of the world", who has an intense interest in human society and holds a prominent position in public society. He even goes as far as worrying about global affairs. He is fond of "trivial things." Merem Solomon is friendly with Van-Fem, calling him Van (ヴァン?). Merem considers him to be fresh, new, and smart among the Dead Apostles, knowing when to step away from a situation. He finds it strange that Van would have anything to do with such an old-fashioned ritual as the Aylesbury Valesti, but he feels that Van isn't serious about it like Ortenrosse.
He speaks like an amiable old gentleman, but behind that is the intimidating air of a powerful king. His voice gives an impression of someone reminiscing about the past. Van-Fem regards humans in a very different light from most Dead Apostles despite the nature of vampires being to deny humanity. He lives by a very strict code which he holds other Dead Apostles to, with zero tolerance for hypocrisy. He once considered Jester Karture a "fellow affirmer of humanity" admirable for his view of humans as "worthy enough to plan a murder-suicide with" despite his decadent and destructive nature, but upon learning of his obsession with a Heroic Spirit, he completely severed ties with him. If Jester had become obsessed with his Servant without making a claim to "deny human history", he would not have cared, but since Jester changes his very way of being based on who he's dealing with, Van-Fem considers him an "unnecessary bug in the world".
He claims to be ecologically conscious, not desiring to waste energy on such things as a lengthy phone call, though this may be a mere joke as he gave it as a response to Hansa Cervantes' snide comment about him making a donation to the Church.
He has an interest in Flat Escardos in part due to his descent from his old friend Mesala and his nature as a product of the Escardos family's 1800-year-old dream, going as far as to give Flat his phone number. He briefly becomes involved in the True and False Holy Grail Wars purely due to being "invested" in him. While he gives a toast to the fulfillment of the Escardos family project upon Flat's death, he was interested in Flat as "a young man with a future", and sees it as regrettable that he died in order to give bring this dream of "the past" to fruition.
Tsukihime Remake series
Van-Fem is shown to be listed as one of the Ancestors on the list possessed by Arcueid Brunestud.
In the original setting, Van-Fem, one of the longest-serving Dead Apostles, felt that Trhvmn Ortenrosse's ideas were too old-fashioned and broke away from his faction. At some point, Fina-blood Svelten captured Van-Fem's fifth golem castle during an engagement, so Van-Fem started to harbor a long-held grudge against Altrouge Brunestud's faction.
Despite his falling-out with Ortenrosse, he was still participating in the Aylesbury Valesti, but only in the way of providing legitimate capital to build up Aylesbury through legitimate means. In form of V & V Industries (V＆Vインダストリィ, V&V Indasutory?), a company which is owned by him. More so than even Ortenrosse, Merem Solomon credited Van-Fem as the reason it has been able to proceed as far as it has without the Church being able to be involved.
In Prelude, Merem Solomon and Gransurg Blackmore discuss the coming Aylesbury Valesti ritual. While discussing Trhvmn Ortenrosse, Merem declares him to be incompetent and says that Van-Fem is the reason the ritual has been able to proceed. Due to his capital being provided through legitimate means, neither the Church or Mage's Association can directly interfere with the ritual until the ritual begins. When wondering why Van-Fem would be involved despite his dislike of Ortenrosse, Merem learns that Van-Fem is simply providing capital and that he has been spending time on his casino boat. Merem says Van-Fem was a "bit hard-headed" for a time, but now "he's back to being lazy." Merem wishes to remain friends for longer, and because he is of the side that plans to destroy the ritual, he feels that it is fortune Van-Fem isn't serious about the ritual.
During his childhood, Flat Escardos sneaked onto Van-Fem's casino boat as a minor, but Van-Fem let him stay in return for Flat showing him his magecraft. After learning of Flat's exceptionality, Van-Fem also noted that he had achieved the 1,800-year old dream of the Escardos Family. Kischur Zelretch, the Second Magician, also noted this, using the exact same words.
As they are confronted by a projection of Jester Karture while captive of Pale Rider's ward-world, Flat secretly calls Van-Fem on Hansa Cervantes's cellphone, who reveals to them Jester's real name, which distracts him enough that Flat can trace back his spell and affect Jester from where he is hiding through his illusion. Van-Fem states that he did not do this for Hansa, his natural foe, but because he invested in Flat, the descendant of an old friend. He asks as compensation that they dispose of Jester.
In Mahou Tsukai no Yoru, he is briefly mentioned by Alice Kuonji, who recounts the rumor that he sucks the blood of all his employees to create a network of perfect information sharing, and that he became a vampire in order to create a mentally united company with no internal conflict.
Van-Fem is a Puppet Master who is the greatest in terms of making large constructs. Nicknamed Van-Fem of the Demonic Castle (魔城のヴァン＝フェム?), he has created seven giant golems Demonic Castles (魔城, Akuma Jōkaku?). The fifth castle Matri (マトリ, Matori?) was captured by Fina-blood Svelten's Parade.
Jester Karture's lineage as a Dead Apostle originates with Van-Fem, and his action of abandoning Jester causes Jester’s vampiric abilities to degrade.
 Character material - Prelude III: Van Fem [Person's name • Dead Apostle], p.068
Van Fem [Person's name • Dead Apostle]
Valery Fernand Vandelstam.
A member of the Twenty Seven Dead Apostle Ancestors, number fourteen. Demon Lord of Financial Sector. He was a puppet master who materialized seven golems that people referred to as "fortresses".
Van Fem had an intense interest in human society. He was an eccentric Vampire who attempted to increase his influence through non-Vampire method after the First World War.
Rumour had it that recently he constructed buildings in the celebrity town Monaco, and every week he would visit casion boats where he challenged other visitors.
- Fate/hollow ataraxia - 10/09 - Streets - Mimic Rin/Tohsaka Lvl 2
- Fate/strange Fake Volume 6 - Chapter 20: "Fantasy Becomes Reality"
- Fate/strange Fake Volume 3 - Prologue VIII: "The Star Performers' Feast (Part 1)"
 Tsukihime Dokuhon PlusPeriod - TSUKIHIME Dictionary: The Twenty-seven Dead Apostle Ancestors [Term], p.180-182
The Twenty-seven Dead Apostle Ancestors [Term]
The 27 ancestors who are the original source of the Dead Apostles. Currently, about half of them are being sealed by the Church.
As the 27 oldest Dead Apostles, there are those among them that have already disappeared. The reason that they are still counted as the "27" Dead Apostle Ancestors despite that fact is because whenever an Ancestor dies, one of his subordinates will inherit the position.
However, although proper Dead Apostles will create subordinates and work to expand their influence, there are some Ancestors who have no interest in any of that at all. Those Ancestors that used to be magi before they became Dead Apostles tend to be more akin to "seekers" rather than "bloodsuckers". In that sense, both Roa and Nrvnqsr could surely be said to have been brothers.
Though it isn't really related to the main story of Tsukihime, below is a brief introduction of the 27 Dead Apostle Ancestors. The missing numbers represent those Dead Apostles that have either been executed by the Church, or are currently "atoning".
1/ Primate Murder
Details unknown. Murderer of primates. The White Beast. Altrouge's demonic dog (the Beast of Gaia).
2/ The Dark Six
The very first Dead Apostles. The six royals of darkness. Currently resuscitating.
It is said that their revival will unite the 27 Dead Apostle Ancestors, but not a single Dead Apostle knows their true colors.
3/ Crimson Moon Brunestud
Ultimate One. Currently vacant.
4/ Wizard Marshal Zelretch
One of the five existing magicians. Also called Zelretch of the Jewel.
Despite being a Dead Apostle, he cooperates with the True Ancestors. Arcueid thinks of him as a sort of grandfatherly servant. He toppled the Crimson Moon in battle, but had his blood sucked at the last second and became a Dead Apostle. However, even after becoming a vampire his position as a magician stayed intact, and he traveled around the world to various countries where he would take disciples and uniformly ruin them all.
Details unknown. Seems to be a mutant species that crash landed in South America sometime before the Common Era. As an attack-type organism, its power is on a completely different level. It uses the encroaching reality marble, Crystal Valley. Its appearance is similar to a spider's. The former 5th capture it, and was instantly annihilated. Afterward, it was confirmed to possess vampiric traits, and is now treated as an Ancestor itself.
6/ Rizo-Vaal Strout
One of the longest-serving Dead Apostles. Black Knight Strout. One of Altrouge's bodyguards. On account of Apostle recklessly tried to being inflicted with a curse of time, he is immortal. The True Devil Neardark.
7/ Disemboweling Forest Einnashe
A bloodsucker formed from carnivorous plants. It is a forest unified with a single will, and is very similar to a phantasmal species. Once every several centuries, a deep crimson fruit will mature deep within it. This fruit is the congealed mass of all the blood Einnashe took in over the years, and legends state that it has the power to grant immortality to whoever eats it.
8/ Fina-Vlad Svelten
White Knight Vlad. One of Altrouge's bodyguards. The Vampiric Count. Devil of Stratovaris. Captain of the Ghost Fleet. He has an interest in handsome youths, and only drinks the blood of other men. He and Rita simply do not get along at all. Possesses the reality marble Parade.
9/ Altrouge Brunestud
Hybrid of a True Ancestor and a Dead Apostle. Vampire princess of the Dead Apostles. "Black". Master of blood and contracts. Primate Murder's owner. Appears to be a 14 year old girl.
10/ Nrvnqsr Chaos
A living mass of chaos. A magus whose research ultimately led him to become a bloodsucker.
11/ Stanrobe Calhin
The Duke of Predation. Wraith. Also known as the "City Devourer". An invincible character whose density of existence will reach zero in about 200 years.
Tatari. A Dead Apostle purported to exist. Only the name "Night of Wallachia" remains as a legend handed down through the ages.
14/ Van Fem
One of the longest-serving Dead Apostles. Dark Lord of the Business World. Puppet Master. He created seven great golem castles, and so is also known as "Van Fem of the Demonic Castles". A man of the world, who holds a prominent position in public society, and even worries about global affairs. The fifth of his castles, Matri, was captured by Parade during an engagement with the White Knight Vlad, and ever since then he has harbored a grudge against Altrouge's faction.
15/ Rita Rozay-en
A self-proclaimed artist. Indulges in a distinctive hobby even among the Dead Apostles. A second-generation Dead Apostle that inherited her castle from the Dead Apostle that made her, but since she was the official successor her situation is not the same as Enhance's. The very model of a noble bloodsucker, she indulges in a hell of debauchery and luscious depravity day in and day out.
16/ Gransurg Blackmore
Peng. The Black Wing Lord. A Dead Apostle known as the Moon Eater. Uses the reality marble Nevermore. A magus whose research ultimately led him to become a bloodsucker. Despite being a Dead Apostle himself, he possesses an ability that is strong against other Dead Apostles.
17/ Trhvmn Ortenrosse
One of the longest-serving Dead Apostles. The White Wing Lord. A magus who became a bloodsucker. The quintessential vampire. King of the Dead Apostles. As the official representative of the 27 Dead Apostle Ancestors he has the greatest influence – formally, at least. In practice, however, Altrouge's influence is even greater, and the two are constantly at odds. Also, Trhvmn was the Dead Apostle who proposed they start hunting True Ancestors. In a sense, he was the reason Nrvnqsr met his end in that far-off Eastern land.
The Knight of Vengeance, Enhance. A Dead Apostle who killed his master, and only just took over the original 18th Ancestor's position. Consequently, he is known derisively as the "Single-edged Enhance Sword".
20/ Merem Solomon
The Great Four Demon Beasts. Despite being a Dead Apostle, he is the fifth member of the Burial Agency.
Goes by the alias of Crown. For Ciel, he is something like a pesky senpai. A collector of treasures from all times and places. Probably the only reason he joined the Burial Agency is because he wanted to be close to the treasures sealed by the Church.
Aquatic Demon Sumire. Water Bottle. An oddball Dead Apostle that lives underwater. Traditionally, vampire folklore states that they cannot cross running water.
Rivers and oceans are like impassable barriers to them. Sumire has conquered this weakness, but in exchange it seems that it has become hard for her to move on land. Also, she's perpetually drunk. While this may make her seem pretty weak, in reality she has a strong enough compositional ability to break into the upper echelons. Among the Dead Apostles, she is the only one capable of using Marble Phantasm. If you put her on dry land and dry her out, her drunkenness will disappear and she'll be able to demonstrate her true power, maybe. Her outward appearance is that of an easy to get along with drunk lady, and she has a castle, but it's a completely abandoned husk. There's a rumor that she and Rita are on such good terms they could just kill each other.
24/ El Nahat
Background unknown. The artifact called the Book of the Stomach World. A peculiar vampire embodying refraction. Possesses the unique ability to almost certainly erase an opponent in one-on-one combat, but his own body is destroyed every time he uses it and requires several decades to revive. Thanks to that, he is currently sealed by the Church. Regarded as the Burial Agency's ultimate anti-Dead Apostle trump card, they only bring him out on rare occasions.
27/ Caubac Alcatraz
Dead Apostle of the Millennium Lock. A magus whose research ultimately led him to become a Dead Apostle. He was also a believer, just like Merem and Roa. He constructed a labyrinth to protect the culmination of his ideology, the Holy Scripture Triten, from outside invaders. However, he accidentally trapped himself inside, and so has not made an appearance for several hundred years.
EX/ Michael Roa Valdamjong
The Serpent of Akasha. The Infinite Reincarnator. Though the Church counts him among the 27 Dead Apostle Ancestors, the Ancestors themselves despise him as an "extra number".
- Character material - Prelude III
- Fate/strange Fake Volume 6 - Bridge Chapter: "Clink Clank"
Kagetsu Tohya - 27 Dead Apostle Ancestors Series, １４／Van-Fem
27 Dead Apostle Ancestors Series, １４／Van-Fem
One of the top Dead Apostles. Has amazing attention to detail, and has a talent at creating large things.
Posseses seven magical castles. But one of them fell to the White Knight Blood and his ghost corps. Now both are eyeing each other.
Original name Vandehlsteim. A wealthy firm's top. A demon king that resides in light.
Seeing a rapid rise during the last few hundred years.
- Fate/strange Fake Volume 2 - Chapter 3: Day 1, Early Dawn "Ensemble Versus Illusion"
- Fate/strange Fake Volume 4 - Extra Chapter: "-"
- Mahoutsukai no Yoru - Chapter 8 Extra Story: "Whiteboard"
- Fate/strange Fake Volume 7