His will left his crown to his sister, Isabella, who was asked to take her brother's place as the champion of the rebels. Shortly thereafter, she declined, and after a negotiation at Toros de Guisando, in which she and her allies received most of what they desired, Henry was convinced to exclude Joanna la Beltraneja from the succession, and to recognize Isabella as his official heir. Though Henry continued to resist this decision when possible, his actions were ineffective, and he remained at peace with Isabella for the rest of his reign. Isabella became Castile's next monarch when he died in 1474.