My Triamore GM admitted he mostly made it up as he went. But I noodled around on this all day and this is what I have to show for it: Daria le Gris of Tremere, for ArM5.
Daria of Tremere
Age 67 (+8 longevity ritual)
Confidence Score 3 (8)
Int +3, Per 0, Pre +1, Com 0, Str -1, Sta 0, Dex 0, Qik +1
Virtues & Flaws Hermetic Magus, Master; the Gift; Minor Magical Focus: Certamen; Apple Gild Trained, Method Caster, Book Learner, Clear Thinker, Personal Vis Source, Piercing Gaze, Second Sight, Strong Parens, Strong Willed; Ability Block: Martial, Enemies: Rival Guilds, Count Gaumond, and Archbishop Radolfus, Oversensitive: Disrespect, Reclusive, Susceptible to Infernal Power, Unlucky, Weakness: Orphans
Abilities Area Lore: Triamore 3 (library), Artes Liberales 3 (rhetoric), Awareness 2 (social), Civil & Canon Law 2 (Holy Roman Empire), Code of Hermes 2 (tribunal procedures), Concentration 4 (spells), Etiquette 3 (nobility), Finesse 4 (precision), French 5 (Norman), Gaming* 4 (chess), German 3 (expansive vocabulary), Infernal Lore 2 (demons), Intrigue 2 (negotiation), Latin 5 (Hermetic), Leadership 3 (intimidation), Magic Theory 5 (26) (inventing spells), Order of Hermes Lore 2 (politics), Parma Magica 5 (Mentem), Penetration 4 (Auram), Philosophiae 2 (natural), Ride 1 (grace), Second Sight 1, Teaching 4 (10) (apprentices)
Arts Cr 17, In 8, Mu 12, Pe 12, Re 23; An 8, Aq 5, Au 15, Co 7, He 10, Ig 5, Im 10, Me 5, Te 19, Vi 12
M denotes a +3 bonus for Method Caster has been included
Charge of the Angry Winds (CrAu 15) +35M
Circling Winds of Protection (Cr[Re]Au 20) +35M
Clouds of Rain and Thunder (CrAu 25) +35M
Pull of the Skybound Winds (CrAu 30) +35M
Incantation of the Lightning (CrAu 35) +35M
True Sight of the Air (InAu 15) +26M
The Cloudless Sky Returned (PeAu 45) +30M
Chirurgeon's Healing Touch (CrCo 20, Ritual) +32M
Wall of Protecting Stone (CrTe 25) +39M
Stone Tell of the Mind that Sits (InTe 30) +30M
Guardian of Stone (Mu[Re]Te[An] 40) +23M; see below
Obliteration of the Metallic Barrier (Pe[Re]Te 20) +34M
Invisible Hand of the Thief (ReTe 20) +45M; MoH 93
Creeping Chasm (ReTe 35) +45M
Invisible Eye Revealed (InVi 20) +23M
Circular Ward Against Demons (ReVi 25) +44M
Guardian of Stone, Mu(Re)Te(An) 40
This spell transforms a stone statue of an animal into the beast it depicts. The statue can be up to ten cubic paces in size. The transformed beast obeys the caster's commands and has physical abilities appropriate to its species, but has only Cunning, no magical powers, and no Might. Due to experimentation when this spell was first invented, the creature cannot travel more than thirty paces from the spot where it was transformed. If the beast is killed, it returns to stone.
This spell was invented by Anaxagoras, Daria's pater, who used it to gain a +8 bonus to his lab total when enchanting various stone guardians around Triamore. Daria invented it from his lab text, and so her version has the same flaw his does.
(Base 5, +1 Stone, +1 Touch, +2 Sun, +1 Size, +1 Animal, +1 Rego)
Size +4, Refinement +2, General Quality +3, Upkeep +5, Safety +2, Warping 0, Health +3, Aesthetics +7
Cr +1, Ig +1, Im +1; Teaching +1, Texts +5
Virtues & Flaws Extensive Stores, Greater Expansion, Highly Organized, Magic Item: Bookstand of Hespera, Magical Heating, Magical Lighting, Opulent, Spacious, Spotless
Lab Total = Te + Fo + 13 (Int 3 + MT 5 + Aura 2 + lab 3) + 1 inventing spells + apprentice + lab specializations
Daria is 67 years old, is a Master, and has taught two apprentices, the last of which took his Gauntlet eight years ago. Since Master status is required before a Rhine magus can teach an apprentice, Daria must have achieved it by the age of 29, five years after her Gauntlet. This is astonishingly early. She was probably the youngest Master ever in the Rhine Tribunal. She doesn't write books on the Art and has no unique spells, so presumably her title was granted based on her mastery of Rego. She probably focused obsessively on this Technique in the years after her Gauntlet and was aided by intense politics on the part of her House.
Daria has too much XP for her age, using the official advancement rules. I've given her Strong Parens to represent access to Triamore's library during her apprenticeship, and her Intrigue and Order of Hermes Lore supported the Gild Training Virtue, but even so I had to bend the rules to avoid reducing her Arts. Rather than give her 30 XP a year, I presumed that, for three seasons out of every year, she read a book in Triamore's library with an average Quality of 10, to which her Book Learner Virtue added 3. For thirty years, her fourth season was spent teaching her two apprentices and acquiring exposure in Teaching. For the remaining thirteen years, that fourth season was spent refining or improving her lab (four seasons), inventing a spell (eight seasons), and making her own longevity ritual (one season), all of which gave her exposure in Magic Theory.
Her score in Gaming was represented with a new Accelerated Ability, one probably fairly common among members of House Tremere.
Notably, Daria has neither a talisman nor a familiar, she knows few spells, and most of those she does know are high level. Her high Arts, largely wasted, show all the signs of a maga who seldom has to worry about penetrating magic resistance and who is probably working towards enchanting a talisman, probably a crown with high level Rego Auram and Terram effects. If she has some spare seasons, she should spend them learning multiple low level spells in Creo and Rego, Auram and Terram.
Noncombatant was removed from her Flaws, because House Tremere is a militant House now and they don't accept Noncombatants. She can, however, take Ability Block: Martial because magi fight with magic, not weapons. Lost Love was removed because it wasn't supported in her background (but was supported in Remi's). Another minor Flaw was needed, and it could not be a Story or Personality Flaw (she already has three of the latter), so Unlucky was chosen as something, if not supported by the source material, at least not contradicted. Two of her spells, Opening the Earth's Pore (which creates a volcano) and Thief of Breath (which takes the air from a targets lungs, creating fatigue and fear), could not be easily converted to ArM5, but might be effects she is planning on enchanting into her talisman.
I didn't change her age or the known facts of her biography, instead trying to rationalize all known facts about her.