The title of this article is conjectural.

Although this article is based on official information from the Star Wars Legends continuity, the actual name of this subject is pure conjecture.

"They were first cousins, twice removed. Or was it once removed? It's kind of confusing because my grandfather married his niece…"
―Tyrak, on his parents[src]

The mother of Moff Tyrak was a Human female member of the Tyrak lineage. Tyrak's mother married a man who was also a member of the family—her first cousin either once or twice removed—and the two had a son, Tyrak, together. As a result of the incestuous relationships of their family, Tyrak himself was mildly deranged.