+ Danish expeditions of into the Duchy of Pomerania and the Principality of Rügen Date Destination, notes1042–1047Rügen, Iumne (destroyed 1043)Heitz (1995), p.1571080–1086Rügen1098Julin (subdued)1129 or 1130Usedom, JulinHeitz (1995), p.1621136Pomerania,Herrmann (1985), pp. 394ff Rügen (Arkona)1150PomeraniaSummer 1159Hiddensee and BarthHeitz (1995), p.163Fall 1159Rügen (Arkona)1160Pomerania, with support of the Rani and Henry the LionSpring 1162Wolgast, defeat of Pomeranian forces, Danes carry off Pomeranian hostagesJuly 1164Mecklenburg and Pomerania, together with Henry the Lion who defeats the Wends in the Battle of VerchenHeitz (1995), p.164Fall 1164Rügen, devastation of the coastlineApril/May 1165Rügen (Arkona, Zudar, Garz), also Pomeranian-claimed territory (Tribsees devastated)Fall 1165Rügen (Arkona, Jasmund, Mönchgut)March/April 1166TribseesHeitz (1995), p.165May 1166Wolgast, "Ostrozne" (thought to be Wusterhusen). Henry the Lion protests that Valdemar I of Denmark attacked his vassal, Bogislaw I, Duke of Pomerania.September/October 1166Demmin, Wolgast, UsedomJune 1168Siege of Arkona, Rügen becomes Danish principality. In 1169, Valdemar pledges allegiance to Frederick I, Holy Roman Emperor (Barbarossa), and in turn is permitted to campaign in Pomerania as he likes.Fall 1170Wollin and Kammin, Oder estuaryBuchholz (1999), pp. 34, 351171Tribsees (in May), Circipania1173"Gorgasia", Wollin, Kammin, Usedom, Stettin. Poland sends relief forces to besieged Bogislaw in Stettin, Denmark nevertheless sacks the burgh, the castellan becomes a Danish vassal.1174Danish preparations for a further campaign fail, two-year peace settlement with the WendsHeitz (1995), p.166June 1177Valdemar demands that Henry the Lion campaigns in Pomerania, Henry besieges Demmin for 10 weeks1177Wolgast, Groswin, Demmin, supported by Henry the Lion. Oder Lagoon area.1178"Ostrozno" (thought to be Wusterhusen, in the spring), WolgastSpring 1184On demand of Frederick I, Holy Roman Emperor (Barbarossa), his vassal Bogislaw I, Duke of Pomerania, mounts a naval attack against Danish vassal Jaromar I, Prince of Rügen, to punish Valdemar's son Kanut for not pledging allegiance to the emperor. Utter defeat of the Pomeranian navy in the Battle of Bay of Greifswald.Heitz (1995), p.167Summer 1184Wolgast and Usedom (unsuccessful), Wollin (destroyed)After 22 September 1184PomeraniaLate 1184TribseesApril/May 1185Wolgast, Groswin, Kammin.Heitz (1995), p.168Bogislaw I, Duke of Pomerania, pledges allegiance to Canut VI of Denmark.1189Stettin1198–1199Danish and Brandenburgian forces under Margrave Otto II fight against each other in Mecklenburg, the Principality of Rügen, and the Peene area. Demmin gets destroyed.(1214)Frederick II, Holy Roman Emperor renounces his claims to the areas east of the Elde and Elbe rivers (including Rügen and Pomerania) in favour of DenmarkHeitz (1995), p.169(1227)Utter Danish defeat in the Battle of Bornhöved, end of Danish rule in Pomerania, principality of Rügen remains with Denmark.Heitz (1995), p.1701228Pomeranians attack and sack Danish-held Wolgast1233Demmin sacked by Valdemar II of Denmark1234Wartislaw III, Duke of Pomerania and Lübeck attack and sack Danish-held Demmin
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