Fr Felix de Conceisao was born as Felix de Miranda. He was the son of Oedro de Miranda and of Maria Francisca of Lisbon. he was the Prior of the Convent of Thana 1720 to 23, Convent of Graca de Goa 1729 to 30 and also worked at the Royal Chapel of St Anthony in Old Goa. He died in a shipwreck during the voyage to the mission in Bengal.