III
This record is from Morning Star, which is past where you have read.
Romulus au Raa
The austere lord of the Moon Lords of the The Rim, whose people consider the core worlds decadent, and he's no more pleased with them than they are with him.
He agrees to fight with the Rising in exchange for the independence of his realm. It's a treaty both sides will have reason to reconsider.
When Dido brings about a coup he takes his own life in the old Rim fashion, with the kind of gravity he has brought to all things.