When your liege is killed and resurrected, it is a priority to reaffirm your loyalty. Among his other duties, he seeks out Blanxart at Carlota's mansion, and as a duke he does not have long to wait.

"My liege." He kneels. "It grieves me deeply that I was not there to protect you, the night of the 3rd, and I am pleased to see you back with us again." Especially since, from the reports he's pieced together, he might have been enough to make the difference, especially if he had somehow known to bring his guard.