Surprisingly enough, no, Sainze didn't control any. Breakdown as of FM: Crusader Clans/Updates was:
Beyl-Grant: Firehold, née Howler, and Anathema
Mick-Kreese: Jungle Heat, née Fire-Eater, and Rancor
Payne: Reaver
Faraday-Tanaga: Firetender
Matilla-Carrol: Rage
But from the FM entry, it sounds like Sainze *should* have controlled one of the WarShips, at least at some point.
As one of the big three, this means that either they failed their initial Trial of Possession for a WarShip or lost it after the fact in a Trial against Matilla-Carrol.