Will by which D. Beatriz Mexia, D. António Manuel's widow, establishes an entail with a public debt instrument of 200 000 réis in Almoxarifado de Santarém and rents in properties in Campo Maior, Arronches and Ouguela. She appoints her niece, D. Beatriz, D. Álvaro de Silveira's wife, to be its first administrator, obligating her and her successors to give 24 000 réis each year to the convent of S. Domingos of Lisboa with the purpose of supporting the celebration of daily masses for her soul. She orders that this entail should be henceforth attached to the Afonso Mexia's entail and administrated by its administrator. The testator declares that her remains should be buried inside the chapel her father, Afonso Mexia, established in that convent. Followed by an approval deed issued on 1597-07-16.