The House of La Valette is a Temerian noble house ruling Barony La Valette, with long-standing ties to the royal dynasty. As Assassins of Kings begins, the head of the family is Baroness Mary Louisa La Valette, the heir is her son Aryan, and both are in open rebellion against King Foltest.
The old baron La Valette married Mary Louise with whom he had a son, Aryan. The wife of Baron became the mistress of King Foltest a union which produced two bastard children, Anaïs and Boussy La Valette. Initially, Mary concealed the fact that the king was the father of the children, allowing them to pass as the children of the old baron. But when the truth about their true origin came to light, Foltest denied everything, ridiculing his mistress and her family.
Young Aryan could not get over the disgrace, and his mother worried more and more about the fate of the younger children. They soon found themselves dissatisfied with the rule of Foltest's nobles and stirred up rebellion among the barons, hoping to weaken the crown and obtain new privileges. Maria declared the independence of La Valette lands from Temeria and placed her son in command of her subjects.
Foltest responded blow for blow and took up the challenge. The La Valette troops could not match the royal army who laid a month-long siege of La Valette Castle.