Andronicus Callistus was one of the most able Greek

Greeks

The Greeks, also known as the Hellenes , are a nation and ethnic group native to Greece, Cyprus and neighboring regions. They also form a significant diaspora, with Greek communities established around the world....

 scholars of the 15th century and cousin of the distinguished scholar Theodorus Gaza

Theodorus Gaza

Theodorus Gaza or Theodore Gazis also called by the epithet Thessalonicensis and Thessalonikeus was a Greek humanist and translator of Aristotle, one of the Greek scholars who were the leaders of the...

.

Life

Born in Thessalonica he worked as a professor in Rome

Rome

Rome is the capital of Italy and the country's largest and most populated city and comune, with over 2.7 million residents in . The city is located in the central-western portion of the Italian Peninsula, on the Tiber River within the Lazio region of Italy.Rome's history spans two and a half...

, Bologna

Bologna

Bologna is the capital city of Emilia-Romagna, in the Po Valley of Northern Italy. The city lies between the Po River and the Apennine Mountains, more specifically, between the Reno River and the Savena River. Bologna is a lively and cosmopolitan Italian college city, with spectacular history,...

, Florence

Florence

Florence is the capital city of the Italian region of Tuscany and of the province of Florence. It is the most populous city in Tuscany, with approximately 370,000 inhabitants, expanding to over 1.5 million in the metropolitan area....

 and Paris

Paris

Paris is the capital and largest city in France, situated on the river Seine, in northern France, at the heart of the Île-de-France region...

, although he also traveled extensively in northern Europe

Northern Europe

Northern Europe is the northern part or region of Europe. Northern Europe typically refers to the seven countries in the northern part of the European subcontinent which includes Denmark, Estonia, Latvia, Lithuania, Norway, Finland and Sweden...

 and eventually died in the Kingdom of England

Kingdom of England

The Kingdom of England was, from 927 to 1707, a sovereign state to the northwest of continental Europe. At its height, the Kingdom of England spanned the southern two-thirds of the island of Great Britain and several smaller outlying islands; what today comprises the legal jurisdiction of England...

 in 1476.

Among his works is a defence of Theodore of Gaza's positions against the criticisms of Michael Apostolius

Michael Apostolius

Michael Apostolius was a Greek theologian and rhetorician of the 15th century.- Life :...

(Andronicus Callistus Defensio Theodori Gazae adversus Michaelem Apostolium).