Marie José of Belgium Claretta Petacci, claimed in her diary that in 1937 the then princess and wife of the heir to the throne tried and failed to seduce the dictator at a beach resort near Rome. However, Mussolini's son, Romano, claims that the princess and dictator entered into a sexual relationship. In 1943, the Crown Princess involved herself in vain attempts to arrange a separate peace treaty between Italy and the United States; her interlocutor from the Vatican was Monsignor Giovanni Battista Montini, a senior diplomat who later became Pope Paul VI. Her attempts were not sponsored by the king and Umberto was
Roman dictator expected to resign, and when the dictator laid down his "imperium", so would the magister equitum. In theory, the magister equitum was commander of the cavalry, but he was not limited to that role. The dictator and magister equitum did not always take the field together; in some instances the magister equitum was assigned the defense of the city while the dictator took an army into the field, while on other occasions the dictator remained at Rome to see to some important duty, and entrusted the magister equitum with an army in the field. The magister equitum was necessarily subordinate