Tomasso Parentucelli was a 15th century Italian prelate and papal diplomat who went on to become Pope Nicholas V. A variety of synonyms can be used to refer to Parentucelli, such as Nicholas V, Tomasso Parentucelli, and Pope Nicholas. These names can be used interchangeably when discussing his life and legacy. He was known for his patronage of the arts and his efforts to restore Rome to its former glory. He commissioned numerous architectural projects and works of art, including the famous Sistine Chapel. Overall, Parentucelli remains an important and influential figure in the history of the Catholic Church.