There are several synonyms for the name Enea Silvio Piccolomini, who was also known as Pope Pius II. Some of these synonyms include Enea Silvio de' Piccolomini, Aeneas Silvius Piccolomini, and Aeneas Sylvius. Piccolomini was an Italian bishop, humanist, and author who held several influential positions in the Catholic Church during the Renaissance era. His work as a diplomat and his writing on political and social issues of his time have made him a significant figure in the history of intellectual and cultural life in Europe. Despite his many aliases, Enea Silvio Piccolomini remains a prominent name in the annals of European history.