So I read this european (french?) comic a while ago about 4 brothers and their "amazon" mother. The setting was in a Conan/Red Sonja/Viking -type (with a lot of snow.) The main protagonist is the youngest of the brothers who an evil overlord/god who tells his life story to a severed head. The youngest brother was born with no dick so the mother abdoned him in the forest where he was picked up and raised by a wolf. Later in the comic the brothers fight each other.
Also each brother had a mystical item. A big ax, a druid staff, an invisibility cloak and the protagonist had an evil/demonic pot.
Artstyle in in pic is kinda similar.
Slain is the title