Sweyn III, King of Denmark
| Reign | 1146 - October 23, 1157 (11 years) |
| Co-Monarchs | |
| Predecessor | Eric III of Denmark |
| Successor | Valdemar I |
| Full Name | Sweyn Eriksen |
| House | House of Estridsen |
| Birth | 1125 |
| Father | Eric II of Denmark (1090-1137) |
| Mother | Lady Thunna (1099-1142) |
| Paternal Grandparents |
Eric I of Denmark (1060-1103) Boedil Thurgotsdatter (1056-1103) |
| Death |
October 23, 1157 Grathe Heath, Denmark (32 years) |
| Adela, Margravine of Meissen (1133-1181) |
Married 1152 (5 years) |
|
Luitgard, Princess of Denmark (m.1180 Berthold I, Count of Istria) (1 son, 3 daughters) |
Born 1155 Died 1209 (54 years) |