Entail foundation deed by Guiomar da Costa, widow of Francisco Mendes de Castro, with all her assets, appointing Luís de Solla, son of her nephews, Fernando Lopes da Costa and Juliana de Solla, as first administrator, with the pious obligation of five annual masses in the monastery of S. Francisco of Trancoso. Luís de Solla was present, accepted the entail and confirmed its foundation.

Documents produced by the entail.