There are four popes in the period from 1550 to 1605 whose consecration details are not yet known:
Pope Julius III (1550 - 1555), Giovanni Maria Ciocchi dei Monte, elected Archbishop of Manfredonia 18 March 1513.
Pope Gregory XIII (1572 - 1585), Ugo Boncompagni, elected Bishop of Vieste 20 July 1558.
Pope Innocent IX (1591 - 1591), Giovan Antonio Facchinetti, elected Bishop of Nicastro in 1560.
Pope Leo XI (1605 - 1605), Alessandro de`Medici, elected Bishop of Pistoia in 1573.
Any information on the consecrations of any of these popes will be gratefully received and publicly acknowledged on this
site. Thank you!