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|Ab urbe condita||2309|
|Balinese saka calendar||1477–1478|
|English Regnal year||2 Ph. & M. – 3 Ph. & M.|
|Chinese calendar||乙卯年 (Wood Rabbit)|
4252 or 4192
— to —
丙辰年 (Fire Dragon)
4253 or 4193
|- Vikram Samvat||1612–1613|
|- Shaka Samvat||1477–1478|
|- Kali Yuga||4656–4657|
|Japanese calendar||Kōji 2|
|Minguo calendar||356 before ROC|
|Thai solar calendar||2098–2099|
1682 or 1301 or 529
— to —
1683 or 1302 or 530
|Wikimedia Commons has media related to 1556.|
- January 16 – Charles I, having already abdicated as Holy Roman Emperor, resigns the Kingdom of Spain in favour of his son, Philip II, and retires to a monastery.
- January 23 – The Shaanxi earthquake, the deadliest earthquake in history, occurs with its epicenter in Shaanxi province, China; 830,000 people may have been killed.
- February 5 – Truce of Vaucelles: Fighting temporarily ends between France and Spain.
- February 14
- February 22 (approx.) – Sophia Jagiellon marries Henry V, Duke of Brunswick-Lüneburg.
- March 21 – In Oxford, Thomas Cranmer is burned at the stake for treason.
- November – The Truce of Vaucelles collapses, and war resumes between Henry II of France and Philip II of Spain.
- November 5 – Second Battle of Panipat: Fifty miles north of Delhi, a Mughal army defeats the forces of Hemu, to ensure Akbar the throne of India.
- The kings of Spain take control of the Flanders region, including what is now the French département of Nord.
- The Plantations of Ireland are started in King's County (now County Offaly) and Queen's County (now County Laois), the earliest attempt at systematic ethnic cleansing in Ireland, by the Roman Catholic ruler Queen Mary I of England.
- Future King Prince John, younger son of King Gustav I of Sweden becomes Duke of Finland.
- Ivan the Terrible conquers Astrakhan, opening the Volga River to Russian traffic and trade.
- The Welser banking families of Augsburg lose colonial control of Venezuela.
- Lorenzo Priuli becomes Doge of Venice.
- The false Martin Guerre appears in the French village of Artigat.
- The first printing press in India is introduced by Jesuits, at Saint Paul's College, Goa.
- January 8 – Uesugi Kagekatsu, Japanese samurai and warlord (d. 1623)
- January 24 – Christian Barnekow, Danish noble, explorer and diplomat (d. 1612)
- February 4 – Dorothea of Hanau-Münzenberg, German noblewoman (d. 1638)
- February 7 – Countess Maria of Nassau (d. 1616)
- February 16 – Tōdō Takatora, Japanese daimyō (d. 1630)
- February 21 – Sethus Calvisius, German calendar reformer (d. 1615)
- March 7 – Guillaume du Vair, French statesman and philosopher (d. 1621)
- March 13 – Dirck van Os, Dutch merchant (d. 1615)
- April 8 – David Hoeschel, German librarian (d. 1617)
- April 9 – Andreas von Auersperg, Carniolan noble and military commander in the battle of Sisak (d. 1593)
- April 27 – François Béroalde de Verville, French writer (d. 1626)
- May 31 – Jerzy Radziwiłł, Polish Catholic cardinal (d. 1600)
- June 6 – Edward la Zouche, 11th Baron Zouche, English politician and diplomat (d. 1625)
- June 13 – Pomponio Nenna, Italian composer (d. 1608)
- June 24
- July 9 – Elizabeth Finch, 1st Countess of Winchilsea, English countess (d. 1634)
- July 22 – Otto Henry, Count Palatine of Sulzbach (d. 1604)
- July 26 – James Melville, Scottish divine and reformer (d. 1614)
- August 10 – Philipp Nicolai, German Lutheran pastor (d. 1608)
- August 16 – Bartolomeo Cesi, Italian painter (d. 1629)
- August 17 – Alexander Briant, English Jesuit martyr (d. 1581)
- September 21 – William Harris, English knight (d. 1616)
- October 18
- October 24 – Giovanni Battista Caccini, Italian artist (d. 1613)
- October 26 – Ahmad Baba al Massufi, Malian academic (d. 1627)
- November 15 – Jacques Davy Duperron, French cardinal (d. 1618)
- November 28 – Francesco Contarini, Doge of Venice (d. 1624)
- December 5 – Anne Cecil, Countess of Oxford, English countess (d. 1588)
- December 17 – Abdul Rahim Khan-I-Khana, Indian composer (d. 1627)
- December 27 – Jeanne de Lestonnac, French saint (d. 1640)
- date unknown
- January 8 – Anne Shelton, elder sister of Thomas Boleyn (b. 1475)
- January 27 – 2nd Mughal Emperor Humayun (b. 1508)
- February 12 – Giovanni Poggio, Italian cardinal and diplomat (b. 1493)
- February 26 – Frederick II, Elector Palatine (1544–1556) (b. 1482)
- March 21 – Thomas Cranmer, Archbishop of Canterbury (burned at the stake) (b. 1489)
- April 18
- April 26 – Valentin Friedland, German scholar and educationist of the Reformation (b. 1490)
- May 4 – Luca Ghini, Italian physician and botanist (b. 1490)
- May 28 – Saitō Dōsan, Japanese warlord (b. 1494)
- June 10 – Martin Agricola, German composer (b. 1486)
- June 24 – Joan of Valois, French princess (b. 1556)
- July 31 – Ignatius of Loyola, Spanish founder of the Jesuit order and saint (b. 1491)
- August 11 – John Bell, Bishop of Worcester
- August 17 – Victoria of Valois, French princess (b. 1556)
- September – Patrick Hepburn, 3rd Earl of Bothwell, Scottish traitor (b. 1512)
- October 7 – Frederick of Denmark, Prince-bishop (b. 1532)
- October 21 – Pietro Aretino, Italian author (b. 1492)
- November 10 – Richard Chancellor, English Arctic explorer (drowned at sea) (b. c. 1521)
- November 14 – Giovanni della Casa, Italian poet (b. 1503)
- date unknown
- "Kings Of Poland 1386-1572". Medieval Lands. Retrieved January 3, 2012.