Page "Diego Sarmiento de Acuña, 1st Count of Gondomar" Paragraph 21

Part of the private correspondence of Gondomar with his relatives and with other Galician noblemen have been preserved in the archives of the house of Alba.

These private letters are frequently written totally or partially in Galician, and represent an invaluable source for the knowledge of this language in the transition from Old Galician to Middle Galician, a period for which there are but a few literary or public documents preserved.

Gondomar is also well known for his Galician patriotic writings in defence of the antiquity and noblesse of the Kingdom of Galicia and of the Galicians, because ' Galicia was a Kingdom and her kings got this title well before any other in Spain '.