Maria Anna, also known as HRH, Maria Anna of Austria, Infanta of Spain, Archduchess of Austra, Infanta of Portugal, Princess of Burgundy, Princess of the Low Countries, and after marriage, HIRM The Holy Roman Empress and Queen of Hungary, was the youngest daughter of King Philip III of Spain and Margaret of Austria. She was later a Holy Roman Empress and queen of Hungary. She was a younger sister of Anne of Austria and Philip IV of Spain. Wikipedia
The definitive Wikipedia entry for Maria Anna Of Spain. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Maria_Anna_of_Spain
