Luchas de los bandos oñacino y gamboino en Guipúzcoa, supresión de los Alcaldes de la Hermandad en el año 1375

The author reproduces a copy of a privilege of the town of Azpeitia which informs on the struggle between the "oñacino" and "gamboino" groups in 1372 and 1373. It is a sentence by the mayors of the Brotherhood (who were "gamboínos") in which they attempt to obliterate the "oñacinos" of Azpeitia