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.

An onomastic calendar: November

Here’s the full monthly calendar of our #OnThisDay posts on twitter:

• November 1: Empress Mathilda was deposed as Lady of the English in 1141.
• November 2: Emma of France died in 934.
• November 3: Benvenuto Celllini, Italian artist, was born in 1500.
• November 4: Sophia of Bavaria, queen consort of the Romans and Bohemia, died in 1428.
• November 5: The feast day of St. Felix of Valois.
• November 6: Juana la Loca was born in 1479.
• November 7: Constans II was born in 630.
• November 8: Julian of Norwich was born in 1342.
• November 9: Sancha of Castille died in 1208.
• November 10: Bridget of York was born in 1480.
• November 11: Mathilda of Scotland was crowned queen of England in 1100.
• November 12: Cnut the Dane died in 1035.
• November 13: St. Augustine of Hippo was born in 354.
• November 14: Maurice, prince of Orange, was born in 1567.
• November 15: Justin II becomes emperor of Byzantium in 565.
• November 16: Edward I becomes king of England in 1272.
• November 17: Elizabeth I becomes queen of England in 1558.
• November 18: Antipope Sylvester IV was enthroned in 11015.
• November 19: Pope Anastasius II died in 498.
• November 20: Edmund the Martyr dies in 869 (or 870).
• November 21: García, king of Navarre, died in 1150.
• November 22: Erik V of Denmark died in 1286
• November 23: Ferdinand III conquered Seville in 1248
• November 24: Joan of Arc beseiged La Charite in 1429.
• November 25: Malcolm II of Scotland died in 1034.
• November 26: Infanta Catarina of Portugal was born in 1436.
• November 27: Byzantine Emperor Maurice died in 602.
• November 28: Pope Gregory III died in 741.
• November 29: Joachim Viadan, Swiss Humanist, was born in 1484.
• November 30: Saint Gregory of Tours was born c538.