Christian Detlev Reventlow
|Christian Ditlev, Count of Reventlow|
|The counts of Reventlow Coat of Arms|
|Spouse(s)||Benedicte Margrethe von Brockdorff|
IssueChristian Ditlev Reventlow
|Father||Conrad von Reventlow|
|Mother||Anne Margrethe Gabel|
|Born||21 June 1671
|Died||1 October 1738
Tølløse Castle, Denmark
|Buried||Radsted Church, Denmark|
'Christian Detlev, Count of Reventlow' (1671-1738) was a Danish military leader and diplomat. He was the son of Conrad, Count Reventlow, chancellor of Denmark and half-brother of Anne Sophie Reventlow, queen consort of Denmark after her morganatic marriage to Frederick IV of Denmark.
Christian was destined for a military career. He fought in the Danish contingent against the French in the War of the Grand Alliance.
In 1701 he was sent at the head of the Danish troops to fight the French in Italy in the War of Spanish Succession. He served under Eugene of Savoy, but had to face the French alone in the Battle of Calcinato in 1706. Outnumbered, and against the able general Vendôme, Reventlow had no chance of success.
In March 1713 King Frederick IV appointed Reventlow as president of Altona. The city had been plundered by the Swedish, and had to be rebuilt. His task was to supervise the reconstruction program. In 1732 he was dismissed as president of Altona after the death of his brother in law, Frederick IV of Denmark.