Will by which Gonçalo Mendes Mergulhão, married three times, declares he established a chapel in the convent of Santíssima Trindade of Lisboa with an obligation of a daily mass for the soul of his second wife, D. Ângela da Nóbrega, for which he has given 600 000 réis to the priests of the convent, and of keeping a merceeiro, to be elected by his successors.
He appoints his legitimized son, Manuel de Campos Mergulhão, who lives in India, as administrator of the chapel of S. Martinho in Alter do Chão, founded by Martinho Eanes and his wife, Esteva Faleira, which he kept by sentence against the claims of other relatives, and which is a chapel of appointment. If his son is already deceased, he appoints in his place his eldest daughter, D. Francisca Mergulhão, or her sister. If all of them are deceased, he appoints instead Gonçalo Mendes de Pina, son of Francisco de Morais de Pina, and great-grandson of his step-sister, Maria de Anrecada.
He entails all of his properties to his chapel in the monastery of Santíssima Trindade, and establishes an entail, which he bequeaths to Manuel de Campos Mergulhão and his successors, with an obligation of ten other annual masses in his chapel. If they are all deceased, it shall pass to his closest relative.
Followed by approval deed and opening deed of the will, dated 1653-08-24.