This document provides a biography of Portuguese poet Fernando Pessoa. It details that he was born in Lisbon in 1888 and attended school in South Africa before returning to Portugal in 1905. It describes how he began publishing poetry, criticism, and creative works in the 1910s under various heteronyms or alter egos, including Alberto Caeiro, Ricardo Reis, and Álvaro de Campos. Pessoa was a prolific yet private writer who published just one book of Portuguese poems in his lifetime. He died in 1935 in Lisbon from cirrhosis of the liver. The document examines Pessoa's innovative use of heteronyms to express different personas and perspectives through his writing.