 Subordinate to him were the subprefect, the forriere maggiore, the cavallerizzo maggiore, the segreteria della prefettiora, the computisteria, the architetto and the juristic counsellors, forming in their corporate capacity, the divisional boards of direction of the palace administration.The museums and galleries were also entrusted to this body.The above-mentioned alteration by Leo XIII took place on 29 December 1891, after the prefecture had been separated by a Motu proprio of 7 December.