MARGUERITE OF AUSTRIA (1522-1586) duchess of Parma; natural daughter of Charles V, she was governess of the Spanish Netherlands. 4 L.S. "Margarita", 1566-1584; 6pages folio, 2 addresses with seal under paper; in Italian. Brussels March 17, 1566, to her husband the Duke of Parma and Piacenza, concerning Giraldi's embassy. - Civita Ducale August 31, 1569, to Martio Faralio in Rome. Regarding a lawsuit in Rome concerning ownership of the lands dependent on her castle of Sambuci, for which she has a copy of the donation made by Maria and Antonia d'Antioche to Duke Alessandro de Medici... - Civita Ducale October 18, 1569, regarding assistance given to Count Philippe de Mansfelt. - L'Aquila May 8, 1584, concerning proceedings against her at the Ruota; she consulted her secretary Mutio Davanzati and doctor Rustici, before turning to His Holiness...