Pope Benedict XIII
On 12 June 1724, only two weeks after his election, Pope Benedict XIII appointed Lambertini titular bishop of Theodosia. Lambertini was consecrated a bishop in Rome, in the Pauline Chapel of the Vatican Palace, on 16 July 1724, by Pope Benedict XIII. The co-consecrators were Giovanni Francesco Nicolai, titular Archbishop of Myra (Vicar of the Vatican Basilica), and Nicola Maria Lercari, titular Archbishop of Nazianzus (Papal Maestro di Camera). In 1725, he served as the Canonist at the Roman Synod of Pope Benedict XIII.