Albert continued to devote himself to the education of his family and the management of the royal household. His children's governess, Lady Lyttelton, thought him unusually kind and patient, and described him joining in family games with enthusiasm. He felt keenly the departure of his eldest daughter for Prussia when she married her fiancé at the beginning of 1858, and was disappointed that his eldest son, the Prince of Wales, did not respond well to the intense educational programme that Albert had designed for him. At the age of seven, the Prince of Wales was expected to take six hours of instruction, including an hour of German and an hour of French every day. When the Prince of Wales failed at his lessons, Albert caned him. Corporal punishment was common at the time, and was not thought unduly harsh. Albert's biographer Roger Fulford wrote that the relationships between the family members were "friendly, affectionate and normal ... there is no evidence either in the Royal Archives or in the printed authorities to justify the belief that the relations between the Prince and his eldest son were other than deeply affectionate." Philip Magnus wrote in his biography of Albert's eldest son that Albert "tried to treat his children as equals; and they were able to penetrate his stiffness and reserve because they realised instinctively not only that he loved them but that he enjoyed and needed their company."