What by birth is the woman who was to get married to Prince Charles known by?
Juan de Mendoza, Marquis de la Hinojosa Juan de Mendoza y Velasco, Marquis de la Hinojosa, Governor of the Duchy of Milan, 1612–1616, Viceroy of Navarre, 1620–1623, Spanish Ambassador in England in 1623 to discuss with the regnant father of the later king Charles I of England the requirements to be, eventually, met by the English politicians to get Prince Charles married to Maria of Austria, sister of the then 19 years old ruling king Philip IV of Spain. A knight of the Military Order of Santiago, deceased 24 December 1628, was awarded the title of marquis de la Hinojosa by king Philip III of Spain, on 11 February 1612. Although it is claimed his father was 5th Count of Castrogeriz, it seems under careful inspections that he rather came from a family of landed nobility squires, his father, reported as Antonio Gómez Manrique de Mendoza y Sandoval, being the 6th Sieur of Castrojeriz, and 4th Sieur of Villazopeque, who married first to a certain Isabel de Velasco y nríquez de Ribera, also, apparently, from a rather modest branch of rural proprietors albeit assuming some sort connections with this powerful de Velasco ducal family, (Dukes of Frías).
Princess Irene of the Netherlands Princess Irene of the Netherlands (Irene Emma Elisabeth; born 5 August 1939) is the second child of Queen Juliana of the Netherlands and Prince Bernhard of Lippe-Biesterfeld. Irene was first in the public eye when her family fled the Nazi invasion of the Netherlands during World War II, traveling first to Britain and later to Canada. In 1964, her decision to convert to Roman Catholicism and to marry the eldest son and heir of one of the pretenders to the Spanish throne caused a crisis in both the Dutch royal family and government, bringing her into the world spotlight once again. An activist for disarmament, she is also well known for her work with nature.