Belated, but Duke Gundar was given stats for 3.5e in
A Calling from Verbrek,
which is available in the FoS library.
Nharov Gundar Ftr13: CR 17; Eminent vampire
Medium undead
HD: 13d12
hp: 103
Init: +11 (+7 Dex, Improved Initiative)
Spd: 50ft.
AC: 25 (+7 Dex, +8 Natural), touch 18, flat-footed 18
Base Atk: +13
Grp: +22
Atk: +22 melee (1d6+9, and energy drain, slam), or +22 melee (1d6+9, saber)
Full Atk: +22/+17/+12 melee (1d6+9, energy drain, slam), +22/+17/+12 melee (1d6+8, saber)
SA: Blood drain, children of the night, create spawn, domination, energy drain
SQ: Undead, alternate form, cold and electricity resistance 20, darkvision 60ft., damage reduction 25/silver and magic, fast heal 8, gaseous form, light sleep, spider climb, turn resistance +7, vampire weaknesses
AL: CE
SV: Fort +8, Ref +13, Will +8
Str 29, Dex 25, Con -, Int 15, Wis 14, Cha 17
Skills:
Bluff +16, Climb +25, Hide +15, Diplomacy +5, Disguise +5, Intimidate +21, Listen +14, Move Silently +17, Ride +17, Search +10, Sense Motive +12, Spot +20
Feats:
Alertness, Blind-Fight, Cleave, Combat Expertise, Combat Reflexes, Dodge, Great Cleave, Improved Bull Rush, Improved Grapple, Improved Initiative, Improved Unarmed Strike, Iron Will, Light Reflexes, Mobility, Power Attack, Quick Draw, Spring Attack, Toughness
Languages: Luktar, Balok
Possessions: Rusty ceremonial saber
This could be a starting point to creating your own statblock for Gundar. Also, can someone explain why this character (and the 3E official Strahd also) has "cold and electricity resistance 20" when 3.5e vampires only have 10 of each? Is this from 3.0E?