Doombreed

Doombreed is among the oldest Daemon Princes of Khorne, a warlord who was spilling skulls before the Emperor had a throne. He fought on Horus's battle-barge at Terra, which is the kind of cameo Khorne files under satisfactory. Ten thousand years later Abaddon still borrows him when a crusade needs a named atrocity.

The Fifth Black Crusade drowned Tarinth in ten million sacrifices so Doombreed could step out of a lake of gore and erase the Warhawks and Venerators. Blood Angels aboard Eclipse of Hope chained him on Pallevon at the cost of the ship. He has not stayed chained forever.

Khorne has younger princes. None of them have a resume that starts before recorded history.