Don Pedro Antonio de Medrano y Albelda was a noble from the House of Medrano in La Rioja. Pedro was elected regent of the Royal Council of Navarre on May 9, 1702, for king Philip V of Spain. Medrano was a professor in Valladolid, knight of the Order of Santiago, interim judge of Vizcaya in the Chancery of Valladolid and the Biscayan lordship, oidor of the Valladolid Chancery and oidor in the Council of Orders. Medrano was a descendant of the first King's of Navarre.

The Marquisate of Vessolla also known as "Vesolla" and even "Besolla," is a Spanish noble title created on September 6, 1702, by King Philip V of Spain in favor of José de Elío y Ayanz de Navarra de Esparza Artieda y Velaz de Medrano. He was a native of Elío, Navarra, and served as the equerry and royal steward to Queen Mariana de Austria. He held the rank of maestre de campo in the Tercios de Navarra, a captain of infantry in the valley of Urraúl, a nobleman of Navarra, mayor of Pamplona, and a representative of the military estate in the Kingdom in 1685.