Entail foundation deed by João Martins Ferreira, moço fidalgo of the household of the Infante D. Fernando, made in his tower in the city of Porto. João Martins Ferreira reserves his real estate and other properties bo te perpetually united in a "morgado". He will be the first administrator, followed by his legitimate son or daughter. The successor should administer a chapel associated with the entail, called "Capela de Jerusalém", located in the Monastery of S. Domingos, in Porto. If João did not have descendants, the entail should alternatively pass to his relatives Baltasar Ferreira, Clara Ferreira, Gaspar Salvador Ferreira or Fernando Lourenço, excluding however his Ferreira relatives from Casal de Cavaleiros, and forbidding every administrator to marry them, because of the grievances they made to his father. The administrator should be the first-born son, excluding clerics, and was required to live in Porto.