Emilios Prosalentis was born in Corfu and died in Athens.

He came from a family with a strong artistic tradition. He was the grandson of the renowned sculptor Pavlos Prossalentis (senior) and son of painter Spyridon Prossalentis, who gave him his first lessons in art. His siblings were the painters Pavlos, Eleni and Olga Prossalentis.

He studied at the School of Fine Art, Athens and later continued his education in Paris where parallel to his art studies he also studied engineering. On his return to Greece, he accepted a position with the naval army forces.

Prosalentis worked on seascape, portraiture and landscape with equal zeal. His exceptional seascapes were influenced by the French School, whereas his watercolours were influenced by the Corfu School focusing on the quality of light, colour tension and simplicity of the subject. His portraiture was in keeping with academic tradition.

His works are in many private and public collections, notably: The National Gallery, Athens, the War Museum, Athens, the Leventis Gallery, the Averoff Gallery, the National Bank of Greece and the Koutlides Collection.