The Curse of Chalion (World of the Five Gods, #1)

by Lois McMaster Bujold

“Dondo dy Jironal brought Teidez a drab for his bed last night. Dy Sanda threw her back out. Teidez was infuriated.”

Di Joronal brings a prostitute for the boy; the mother of the castle had her ejected, to the boy's displeasure