Cioli: see Valerio

Clement VII:
Pope, [10];
Medici Library, [54];
clemency, [58];
Medici Tombs, [59];
recalls the master to Rome, [60], [64];
orders the Day of Judgment, [64], [78];
the New Sacristy, [186];
elected Pope, [190]-[192], [195];
his postscript, [197];
and curious commission, [198];
besieged in St. Angelo, [200];
anger abates, [203], [207], [231], [277], [292], [308]

Colombo: Realdo, anatomist, [81]

Colonna:
Vittoria, Marchioness of Pescara, poetry, [76];
a Christ made for her, [74];
the master is enamoured of her divine spirit, [85];
visits her death-bed, [85];
drawings and sonnets for her, [230], [234];
conversations at St. Silvester, [271]-[304], [306]-[308], [312]

Colossus: a proposed, [198], [199]

Condivi: Ascanio della Ripa, the Life by, [3]-93, [163], [164]

Connétable: de Montmorenci, and the Slaves, [227]

Consiglio: a mercer, [110], [111]

Consiglio: Cartoon for the Sala del, [37]

Constantinople:
the designs to throw a bridge from Pera to, [37];
is invited to, [78]