Died in 1574

Jan 22 Abdallah al-Ghalib the second Saadian sultan of Morocco.
Jan 26 Martin Helwig a German cartographer of and from Silesia and pedagogue. He was born in Neisse and died in Breslau, Holy Roman Empire
Jan 30 Damião de Góis an important Portuguese humanist philosopher. He was a friend and student of Erasmus. He was appointed secretary to the Portuguese factory in Antwerp in 1523 by King John III of Portugal. He compiled one of the first accounts on Ethiopian Christianity
Apr 14 Louis of Nassau the third son of William, Count of Nassau and Juliana of Stolberg, and the younger brother of Prince William of Orange Nassau.
Apr 17 Joachim Camerarius a German classical scholar.
Apr 21 Cosimo I de' Medici Grand Duke of Tuscany the second Duke of Florence from 1537 until 1569, when he became the first Grand Duke of Tuscany.
Apr 25 Jan Firlej a Polish nobleman , and Calvinist activist.
May 16 Catherine of Brunswick-Wolfenbüttel Margravine of Brandenburg-Küstrin a Princess of Brunswick-Wolfenbüttel by birth and by marriage Margravine of Brandenburg-Küstrin.
May 30 Charles IX of France a monarch of the House of Valois who ruled as King of France from 1560 until his death. He ascended the throne of France upon the death of his brother Francis II
Jun 12 Renée of France the younger surviving child of Louis XII of France and Anne of Brittany. She was the Duchess of Ferrara due to her marriage to Ercole II d'Este, grandson of Pope Alexander In her later life she became an important supporter of the Protestant reformation and ally of John Calvin
Jun 26 Gabriel comte de Montgomery a captain in Henry II's Scots Guards. He is remembered for mortally injuring Henry in a jousting accident and subsequently converting to Protestantism, the faith that the Scottish Guard sought to suppress
Jun 27 Giorgio Vasari an Italian painter, architect, writer and historian, most famous today for his Lives of the Most Excellent Painters, Sculptors, and Architects, considered the ideological foundation of art-historical writing.
Aug 27 Bartolomeo Eustachi one of the founders of the science of human anatomy.
Sep 1 Guru Amar Das the third of the Ten Gurus of Sikhism and was given the title of Sikh Guru on 26 March 1552. He died at an age of 95
Sep 15 Margaret of France Duchess of Berry the daughter of King Francis I of France and Claude, Duchess of Brittany.
Sep 17 Pedro Menéndez de Avilés a Spanish admiral and explorer from the region of Asturias, Spain, remembered for planning the first regular trans-oceanic convoys and for founding Augustine, Florida in 1565. This was the first successful Spanish settlement in La Florida and the most significant city in the region for nearly three hundred years. Augustine is the oldest continuously inhabited European-established settlement in the continental United States. Menéndez subsequently became the first governor of Florida
Sep 28 Guidobaldo II della Rovere Duke of Urbino an Italian condottiero, who succeeded his father Francesco Maria I della Rovere as Duke of Urbino from 1538 until his death in 1574. He was a member of the House of La Rovere. Guidobaldo was an important patron of the arts in general, and of Titian in particular, commissioning Titian's Venus of Urbino
Oct 1 Maarten van Heemskerck a Dutch portrait and religious painter, who spent most of his career in Haarlem. He was a pupil of Jan van Scorel, and adopted his teacher's Italian-influenced style. He spent the years 1532–6 in Italy. He produced many designs for engravers, and is especially known for his depictions of the Wonders of the World
Nov 28 Georg Major a Lutheran theologian of the Protestant Reformation. He was born in Nuremberg and died at Wittenberg
Dec 4 Georg Joachim Rheticus a mathematician, cartographer, navigational-instrument maker, medical practitioner, and teacher. He is perhaps best known for his trigonometric tables and as Nicolaus Copernicus's sole pupil. He facilitated the publication of his master's De revolutionibus orbium coelestium
Dec 26 Charles Cardinal of Lorraine a French Cardinal, a member of the powerful House of Guise. He was known at first as the Cardinal of Guise, and then as the second Cardinal of Lorraine, after the death of his uncle, John, Cardinal of Lorraine. He was the protector of Rabelais and Ronsard and founded Reims University. He is sometimes known as the Cardinal de Lorraine