Alberto Berdini da Sarteano (1385, Sarteano

Sarteano

Sarteano is a comune in the Province of Siena in the Italian region Tuscany, located about 100 km southeast of Florence and about 60 km southeast of Siena....

 - 15 August 1450, Milan

Milan

Milan is the second-largest city in Italy and the capital city of the region of Lombardy and of the province of Milan. The city proper has a population of about 1.3 million, while its urban area, roughly coinciding with its administrative province and the bordering Province of Monza and Brianza ,...

) was a 15th century Franciscan

Franciscan

Most Franciscans are members of Roman Catholic religious orders founded by Saint Francis of Assisi. Besides Roman Catholic communities, there are also Old Catholic, Anglican, Lutheran, ecumenical and Non-denominational Franciscan communities....

 friar, and an apostolic

Apostolic Succession

Apostolic succession is a doctrine, held by some Christian denominations, which asserts that the chosen successors of the Twelve Apostles, from the first century to the present day, have inherited the spiritual, ecclesiastical and sacramental authority, power, and responsibility that were...

 delegate for Ethiopia

Ethiopia

Ethiopia , officially known as the Federal Democratic Republic of Ethiopia, is a country located in the Horn of Africa. It is the second-most populous nation in Africa, with over 82 million inhabitants, and the tenth-largest by area, occupying 1,100,000 km2...

, India

India

India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

, Egypt

Egypt

Egypt , officially the Arab Republic of Egypt, Arabic: , is a country mainly in North Africa, with the Sinai Peninsula forming a land bridge in Southwest Asia. Egypt is thus a transcontinental country, and a major power in Africa, the Mediterranean Basin, the Middle East and the Muslim world...

 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

Council of Florence

The Council of Florence was an Ecumenical Council of the Roman Catholic Church. It began in 1431 in Basel, Switzerland, and became known as the Council of Ferrara after its transfer to Ferrara was decreed by Pope Eugene IV, to convene in 1438...

 and thus take part to the ongoing efforts to unite all Christian churches. Alberto Berdini returned to Italy

Italy

Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

 on 26 August 1441, with four Ethiopians and Copts, although eventually the efforts at reunion proved fruitless.

From 1442 to 1443, he became Vicar general

Vicar general

A vicar general is the principal deputy of the bishop of a diocese for the exercise of administrative authority. As vicar of the bishop, the vicar general exercises the bishop's ordinary executive power over the entire diocese and, thus, is the highest official in a diocese or other particular...

 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).