From Warhammer 40k - Lexicanum
Ravenwing Ancients are the Company Ancient of the Dark Angels Chapter's Ravenwing Company.
In battle, they carry one of the Ravenwing's sacred standards and form a rallying point for their Company. Beneath the fluttering banner, the Ravening bring death to their foes and the Ravening Ancient can be found at the very forefront of the Company's devastating Bike charges.
- 1: Codex: Dark Angels (9th Edition), pg. 73 — Datasheets