Gregory Colborne
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| Portrayed by Viggo Mortensen | |
| Full Name | Gregory Laurence Colborne |
|---|---|
| Title | Duke of Rothbury |
| Associated Noble House(s) | Dukedom of Rothbury |
| Date of Birth | 1753 |
| Father | Laurence Colborne |
| Father's Rank | Duke of Rothbury |
| Mother | Evangeline Colborne |
| Mother's Rank | Duchess of Rothbury |
| Town Residence | |
| Income | |
| School | Eton |
| University | Cambridge |
| Year Attained Title | 1779 |
| Year of Marriage | 1780 |
| Spouse | Penelope Colborne née Westfall |
| Spouse's Rank | Duchess of Rothbury |
| Issue | Sebastian, Earl of Falstone, Raphael and Margaret. |
Gregory Colborne, is the 11th Duke of Rothbury. He is married to Penelope Colborne, née Westfall, but the marriage is not a happy one and while the couple do occasionally make appearances together for show they generally stay well out of each other's well. He is the father of Sebastian Colborne, Earl of Falstone, Lord Raphael Colborne and Lady Margaret "Meg" Colborne, but has a somewhat distant relationship with all of them. He has chosen not to accompany his family to London.
Gregory is an NPC and belongs to Sarah.