An onomastic calendar: March

• March 1: Louis the Pious was restored as Holy Roman Emperor in 834.
• March 2: Dirk VI becomes count of Holland in 1121.
• March 3: Dutch theologian Gijsbert Voet was born in 1589.
• March 4: Saint Adrian of Nicomedia was martyred in 306.
• March 5: David II of Scotland was born in 1324.
• March 6: Ferdinand Magellan arrives in Guam in 1521.
• March 7: Emperor Constantine declares Sunday a day of rest i n321.
• March 8: Urraca of León and Castile died in 1126.
• March 9: Saint Frances of Rome died in 1440.
• March 10: Agnes Blannbekin, Austrian mystic, died in 1315.
• March 11: Marie de France, Countess of Champagne, died in 1198.
• March 12: Cesare Borgia died in 1507.
• March 13: The bones of St Nicephorus were interred in Constantinople in 874.
• March 14: Catherine Cornaro, queen of Cyprus, sold Cyrpus to Venice in 1489.
• March 15: On this day in 44BC, Julius Caesar was assassinated on the Ides of March.
• March 16: On this day in 1485, Anne Neville, queen consort of England, died.
• March 17: The feast of Saint Patrick.
• March 18: Edward the Martyr, king of the English, died in 978.
• March 19: Alexander III of Scotland died in 1286.
• March 20: Cecily of York, daughter of Edward IV, was born in 1469.
• March 21: St. Angela Merici was born in 1474.
• March 22: Ferdinand II commissioned Amerigo Vespucci in 1508.
• March 23: Margaret d’Anjou was born in 1430.
• March 24: Harun al-Rashid died in 809.
• March 25: Blanche of Lancaster was born in 1345.
• March 26: Conrad II was crowned Holy Roman Emperor in 1027.
• March 27: Rachel Akerman, Austrian poet, was born in 1522.
• March 28: Saint Theresa of Ávila was born in 1515.
• March 29: Arthur I of Brittany was born in 1187.
• March 30: Saint Quirinus of Neuss died in 116.
• March 31: Francis I of France died in 1547.

An onomastic calendar: December

• December 1: Anna Komnene was born in 1083.
• December 2: Gerard Mercator died in 1594.
• December 3: Berengar I was crowned Holy Roman Emperor in 915.
• December 4: Theobald II of Navarre died in 1270.
• December 5: Pope Julius II was born in 1443.
• December 6: Baldassare Castiglione was born in 1478.
• December 7: Saint Columba was born in 521.
• December 8: Mary Queen of Scots was born in 1542.
• December 9: Malcolm IV of Scotland died in 1165.
• December 10: Afonso de Albuquerque conquered Goa in 1510.
• December 11: Llywellyn, last sovereign Prince of Wales, died in battle in 1282.
• December 12: Stephen Báthory, king of Poland, died in 1586.
• December 13: Pope Celestine V resigns the papacy in 1294.
• December 14: James V of Scotland died in 1542.
• December 15: Basil II, emperor of the Byzantine Empire, died in 1025.
• December 16: Henry VI was crowned king of France in 1431.
• December 17: William I Longsword was assassinated in 942.
• December 18: Theodulf of Orleans died in 821.
• December 19: Agnes, Duchess of Burgundy, died in 1327.
• December 20: Margaret of Provence, queen of France, died in 1295.
• December 21: Pope Honorius II was elected in 1124.
• December 22: Stephen of Blois was crowned king of England in 1135.
• December 23: Berengaria of Navarre, Queen of England, died in 1230.
• December 24: Constance of Austria, queen of Poland, was born in 1588.
• December 25: Merry Christmas!
• December 26: Arthur III of Brittany died in 1458.
• December 27: German mathematician Johannes Kepler was born in 1571.
• December 28: Alaric II became king of the Visigoths in 484.
• December 29: Thomas Beckett was murdered in 1170.
• December 30: Vasily I of Moscow was born in 1371.
• December 31: Eleonora Gonzaga was born in 1493.