Relationship Details
Celebrity Biographies
Sienna Miller dated Mark Hildebrandt in the past, but they broke up in March, 2009. Sienna Miller dated Mark Hildebrandt for 3 months. Sienna Miller is currently dating Oli Green.
Entertainment - Actress
Why Famous: Tammy in Layer Cake, film
Age: 42 (b. 12/28/1981)
Entertainment - Actor
Why Famous: Relationship with Charlize Theron
Age: 51 (b. 4/30/1973)
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Relationship Timeline
| Event | Start Date | Length |
|---|---|---|
| Dating | 12/2008 | 3 months |
| Broke Up | 3/2009 | -- |
| Total | 3 months |
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Go To Sienna Miller's Profile Go To Mark Hildebrandt's Profile