| Honorific Prefix: | Fältmarskalk Count |
| Hans Christoff von Königsmarck | |
| Birth Date: | 12 December 1605[1] |
| Death Date: | 8 March 1663 (aged 57) |
| Birth Place: | Kötzlin, Altmark, Brandenburg |
| Death Place: | Stockholm, Sweden |
| Allegiance: |  Sweden |
| Rank: | Field marshal |
| Battles: | Thirty Years War Siege of Prague Second Northern War |
| Laterwork: | Governor-General of Bremen-Verden, Privy Councillor |
Count Hans Christoff von Königsmarck, of Tjust (12 December 1605 - 8 March 1663) was a German soldier who commanded Sweden's legendary flying column, a force which played a key role in the Swedish military strategy in the Thirty Years' War.
He was born in Kötzlin, Altmark as the son of Konrad von Königsmarck (1570-1620) and his wife, Beata Beatrix Elisabeth von Blumenthal (1580-1621).
After serving as a page on the court of Prince Frederick Ulrich of Wolfenbüttel, he entered Imperial military service in 1620. After the dissolution of Albrecht von Wallenstein's troops and Gustavus Adolphus' intervention, Königsmarck offered his services to the Swedish King. By 1635 he commanded his own regiment. He was appointed Major General in 1640, Governor-General of Bremen-Verden in 1645, Privy Councilor in 1651 and Field Marshal in 1655. He is best known for the Siege of Prague between 25 June and 1 November 1648, where he managed to capture and loot the left-bank of Prague but failed to take the Old Town until fighting ended with news of the Peace of Westphalia.
During the Second Northern War, Königsmarck was captured on a sea passage to the Polish front by Danzigian ships and held prisoner at Weichselmünde until the Treaty of Oliva 1660.
In 1655 Königsmarck erected a castle in Lieth and named it after his wife Agathe von Leesten. The name of the castle, Agathenburg, also became the toponym of the village Lieth. Their children were:
He died, aged 57, in Stockholm.