Died in 1573

Mar 2 Johann Wilhelm Duke of Saxe-Weimar a duke of Saxe-Weimar. He was also the last Duke of Saxony and Landgrave of Thuringia
Mar 3 Claude Duke of Aumale the third son of Claude, Duke of Guise and Antoinette de Bourbon. He was a prince of Lorraine by birth
Mar 13 Michel de l'Hôpital a French statesman.
May 13 Takeda Shingen a pre-eminent daimyo in feudal Japan with exceptional military prestige in the late stage of the Sengoku period.
Jun 9 William Maitland of Lethington a Scottish politician and reformer, and the eldest son of poet Richard Maitland.
Jun 15 Antun Vrančić a Croatian prelate, writer, diplomat and Archbishop of Esztergom of the 16th century. Antun Vrančić was from Dalmatian town of Šibenik , then part of the Republic of Venice. Vrančić is also known under his Latinized name Antonius Verantius, while Hungarian documents since the 19th century refer to him as Verancsics Antal
Jun 25 Laura Dianti a lover of Alfonso I d'Este, Duke of Ferrara after the death of his wife Lucrezia Borgia. She was probably also his third wife. She was also known under the pseudonym Eustochia
Jul 7 Giacomo Barozzi da Vignola one of the great Italian architects of 16th century Mannerism. His two great masterpieces are the Villa Farnese at Caprarola and the Jesuits' Church of the Gesù in Rome. The three architects who spread the Italian Renaissance style throughout Western Europe are Vignola, Serlio and Palladio
Jul 29 John Caius an English physician, and second founder of the present Gonville and Caius College, Cambridge.
Aug 7 Léonor d'Orléans duc de Longueville duc de Longueville, prince of Châtellaillon, marquis of Rothelin, count of Montgommery and of Tancarville, visount of Abberville, Melun, count of Neufchâtel and of Valangin, was governor of Picardy and Normandy and one of the military leaders of the French Wars of Religion. He was the grandson of Louis I d'Orléans, duc de Longueville and he succeeded his first cousin, François III d'Orléans as duc de Longueville
Aug 28 Azai Nagamasa a daimyo during the Sengoku period of Japan. His clan, the Asai, were located in northern Ōmi Province, east of Lake Biwa. He was both the brother-in-law of Oda Nobunaga, starting in 1564, and one of Nobunaga's enemies from 1570-1573. Nagamasa and his clan were destroyed by Oda Nobunaga in August 1573. Major battles of Asai Nagamasa include the battle of Anegawa in 1570 and the many sieges of Odani castle between 1570 and 1573
Sep 7 Joanna of Austria Princess of Portugal the mother of Sebastian of Portugal, and later regent of Spain for her brother, Philip II of Spain.
Sep 12 Archibald Campbell 5th Earl of Argyll one of the leading figures in the politics of Scotland during the reign of Mary, Queen of Scots, and the early part of that of James VI.
Sep 23 Azai Hisamasa a son of Azai Sukemasa and the second head of the Azai clan.
Oct 16 Asakura Yoshikage a Japanese daimyo of the Sengoku period who ruled a part of Echizen Province in present-day Fukui Prefecture. Yoshikage's conflicts with Oda Nobunaga resulted in his death and the destruction of the Asakura clan and its castle, Ichijōdani Castle
Oct 27 Laurentius Petri a Swedish clergyman and the first Evangelical Lutheran Archbishop of Sweden. He and his brother Olaus Petri are, together with the King Gustav Vasa, regarded as the main Protestant reformers of Sweden. They are commemorated by the Evangelical Lutheran Church in America on April 19
Nov 7 Solomon Luria one of the great Ashkenazic poskim and teachers of his time. He is known for his work of Halakha, Yam Shel Shlomo, and his Talmudic commentary Chochmat Shlomo. Luria is also referred to as Maharshal מהרש"ל , or Rashal רש"ל
Dec 30 Giovanni Battista Giraldi an Italian novelist and poet. He appended the nickname Cinthio to his name and is commonly referred to by that name