In 1958, a depleted Pius XII retired to the papal villa at Castel Gandolfo, the Holy See's 135-acre summer palace. He was the head of the Institute of Endocrinology at Tel-Hashomer Hospital, now called Sheba Medical Center. By the spring of 1958, Giulio Pacelli and Piero Donini musing over the design needs of the special toilets they planned to install.