Relationship Details
Celebrity Biographies
Mischa Barton dated Sebastian Knapp in the past, but they broke up on August 1, 2013. Mischa Barton dated Sebastian Knapp for 1.2 years. Mischa Barton is currently available.
Entertainment - Actress
Why Famous: Marissa Cooper of The O.C.
Age: 38 (b. 1/24/1986)
Entertainment - Actor
Why Famous: Ex-boyfriend of Mischa Burton
Age: N/A
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Relationship Timeline
| Event | Start Date | Length |
|---|---|---|
| Dating | 6/2012 | 1.2 years |
| Broke Up | 8/1/2013 | -- |
| Total | 1.2 years |
Children of this Relationship
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Affairs
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Go To Mischa Barton's Profile Go To Sebastian Knapp's Profile