Kasimir Velikov

What we know

Dusk-elf elder of Dusk Elf people in hovel south of Vistani wagons outside Vallaki walls (Session 9 @ 01:40:19)
Over 600 years old; clipped ears from Rahadin after genocide (Session 9 @ 02:09:16)
Told history: Barov von Zarovich II conquered Dusk Elf people; uncle Erevan Lowenhart slain by Rahadin (Session 9 @ 01:48:15)
Strahd von Zarovich quashed dusk-elf rebellion (Session 9 @ 01:48:15)
Dusk-elves barred from Vallaki by Baron Vargas Vallakovich as "malicious unhappiness" (Session 9 @ 02:03:34)
Recounted Court of Wolves legend—secret werewolf rulers of Vallaki (Session 9 @ 01:59:51)
Suggested Vallakovich manor library for Court lore (Session 9 @ 02:03:50)
Urged party to see Luvash immediately about Arabelle (Session 9 @ 02:12:56)
Werewolf pack rumored at Lake Baratok west of camp (Session 9 @ 01:58:50)

Dusk-elf hovels at Vistani encampment during Session 9 (Session 9 @ 01:40:19).

Directed Sylalys to speak with him when other dusk-elves refused (Session 9 @ 01:37:41)

Unconfirmed: whether Court of Wolves tale has factual basis (Session 9 @ 02:00:38)