Born in Caldas da Rainha, he graduated from the E.S.B.A.L. in 1943 where he became a teacher. He is the author of numerous works in public spaces,
to wit in Lisbon, Serra da Estrela and Luanda. The production by António Duarte was emphasised in the fields of statues and portraits, having
accumulated, with Leopoldo de Almeida, the main commissions in the 1940's onwards. Sometimes the stylisation brought it close to an abstract
suggestion, though without taking it any further, remaining loyal to the use of the stone.