12th century in Denmark

Events from the 12th century in Denmark.

Monarchs

 * Eric I, 1095–1103
 * Niels, 1104–1134
 * Eric II, 1134–1137
 * Eric III, 1137–1146
 * Sweyn III and Canute V, 1146–1157
 * Valdemar I, 1154–1182
 * Canute VI, 1170–1202

Events

 * 7 January 1131 – Canute Lavard is assassinated after being lured into a forest by Magnus the Strong. Soon after, Eric II amasses forces to avenge his half-brother's death, resulting in the Battle of Jellinge Heath and the outbreak of the Danish Civil Wars.
 * 1131–1132 – Supporters of Magnus the Strong lay Siege to Schleswig.
 * 1132 – Eric II's forces defeat supporters of Magnus the Strong in the naval Battle of Sejerø.
 * 1133 – Magnus' supporters defeat the forces of Eric II and conquer Zealand at the Battle of Værebro.
 * 4 June 1134 – Eric II's forces are victorious against supporters of Magnus at the Battle of Fotevik.
 * 1134 – Pomeranian forces invade and loot Roskilde and Copenhagen.
 * 23 October 1157 – the Danish Civil War ends following the Battle of Grathe Heath. Valdemar I becomes undisputed king of Denmark.
 * 1147 – Danish forces attack Dobin am See as part of the Wendish Crusade.
 * 1168 – Valdemar I and his army attack Rügen. Overthrowing the Rani's autonomy, destroying a Svetovid temple, and installing Christian princes.

Births

 * 1127 – Esbern Snare (died 1204)
 * 14 January 1131 – Valdemar I of Denmark (died 1182)
 * 1158 – Valdemar Knudsen (died 1236 in Cîteaux)
 * 28 June 1170 – Valdemar II of Denmark (died 1241)
 * 1174 – Ingeborg of Denmark, Queen of France (died 1237 in France)

Date unknown


 * c. 1100 – Saint Kjeld (died c. 1150)
 * c. 1106 – Magnus the Strong (died 1134 in Scania)
 * c. 1118 – Christina of Denmark, Queen of Norway (died 1139)
 * c. 1120 – Eric III of Denmark (died 1146)
 * c. 1125 – Sweyn III of Denmark (died 1157)
 * c. 1128 – Absalon (died 1201)
 * c. 1129 – Canute V of Denmark (died 1157)
 * c. 1135 – Helen of Sweden
 * c. 1145 – Christina Hvide (died c. 1200)
 * c. 1150 – Saxo Grammaticus (died c. 1220)
 * c. 1165 – Benedicta Hvide (died c. 1199 in Sweden)
 * c. 1167 – Anders Sunesen (died 1228)
 * c. 1180 – Helena of Denmark (died 1233 in Lüneburg)
 * c. 1190 – Richeza of Denmark, Queen of Sweden (died 1220)

Deaths

 * 10 July 1103 – Eric I of Denmark (born c. 1060, died in Cyprus)
 * 1103 – Boedil Thurgotsdatter, Queen consort (died in Jerusalem)
 * 1104 – Svend Tronkræver
 * 7 January 1131 – Canute Lavard (born 1096)
 * 4 June 1134 – Henrik Skadelår (born c. 1090)
 * 25 June 1134 – Niels, King of Denmark (born c. 1063)
 * 1134 – Bjørn Haraldsen Ironside
 * 1135 – Harald Kesja (born c. 1080)
 * 18 September 1137 – Eric II of Denmark (born c. 1090)
 * 27 August 1146 – Eric III of Denmark (born c. 1120)
 * 16 January 1151 – Hermann of Schleswig
 * 1151 – Asser Rig (born c. 1078)
 * 9 August 1157 – Canute V of Denmark (born c. 1129)
 * 23 October 1157 – Sweyn III of Denmark (born c. 1125)
 * 1176 – Margrethe of Roskilde
 * 1180 – Niels of Aarhus
 * 12 May 1182 – Valdemar I of Denmark (born 1131)
 * 1 June 1197 – Gertrude of Bavaria
 * 5 May 1198 – Sophia of Minsk, Queen consort

Date unknown


 * c. 1100 – Svend Høra
 * c. 1113 – Skjalm Hvide
 * c. 1131 – Cecilia Knutsdatter (born c. 1083)
 * c. 1150 – Saint Kjeld (born c. 1100)
 * c. 1157 – Inger Eriksdotter
 * c. 1170 – Wetheman