Will made by Mécia Álvares, in which she ordered the foundation of a chapel devoted to the Santíssimo Sacramento in the main church of Alter do Chão, where a perpetual daily mass had to be celebrated. The testator entailed to it her houses and properties in Alter do Chão. She expected that her husband, Francisco Cardoso, o Velho, decided to entail the third part of his assets in order to build this chapel. Francisco Cardoso would be its first administrator and, after his death, he would be succeeded by his daughter Inês Cardoso.