 King John subsequently fell out with William and dispossessed him of his lands in 1207, but de Braose's son, also called William, took the opportunity of the chaos during the First Barons' War to retake the castles.Once released from captivity, Hubert regained his grip on power, becoming the royal justiciar and being made the Earl of Kent, before finally recovering the Three Castles in 1219 during the reign of Henry III.He resumed his work at Grosmont, rebuilding the timber walls in stone and adding three mural towers and a gatehouse to its defences.