Relationship Details
Celebrity Biographies
Mark Cornelsen dated T. R. Knight in the past, but they broke up in October, 2009. Mark Cornelsen dated T. R. Knight for 1.7 years. Mark Cornelsen is currently available.
Other - Other
Why Famous: Boyfriend of T.R. Knight
Age: 36 (b. 1988)
Entertainment - Actor
Why Famous: Dr. George O'Malley on Grey's Anatomy
Age: 51 (b. 3/26/1973)
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Relationship Timeline
| Event | Start Date | Length |
|---|---|---|
| Dating | 1/2008 | 1.7 years |
| Broke Up | 10/2009 | -- |
| Total | 1.7 years |
Children of this Relationship
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Go To Mark Cornelsen's Profile Go To T. R. Knight's Profile
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