Alberto Berdini da Sarteano (1385, Sarteano - 15 August 1450, Milan) was a 15th century Franciscan friar, and an apostolic delegate for Ethiopia, India, Egypt and Jerusalem. In 1439 he was sent by Pope Eugenius IV to deliver a letter to the Christians Copts so that they could participate to the Council of Florence and thus take part to the ongoing efforts to unite all Christian churches. Alberto Berdini returned to Italy on 26 August 1441, with four Ethiopians and Copts, although eventually the efforts at reunion proved fruitless.[1][2]
From 1442 to 1443, he became Vicar general of the Order of Friars Minor (he was interim Minister General, i.e. head of the entire order before the nomination of a new Minister General following the death of the previous one).[3]