Brief on behalf Pedro de Silva y de Alagón, Count of Montesanto, versus the Duke of Montellano, father and legal representative of the Marquis of Castellnovo and others, concerning certain inheritance rights in the estate of Luis de Queralt y Alagón, Count of Santa Coloma and Marquis of Pons. [November 10, 1730]. [Contains family tree of the Alagón family].