Santa Maria da Vitória na Batalha is a Dominican monastery in the Portuguese town of Batalha, in the Distric of Leiria, Portugal, that was built to thank the Virgin Mary for the Portuguese victory over the Castilians in the battle of Aljubarrota in 1385, fulfilling a promise of King D. João I. The monastery took two centuries to build, started in 1388 by Afonso Domingues and succeeded by David Huguet in 1402.