Marriage
| Date | 28 September 1397 |
| Place | Upholland Castle, Lancashire, England |
References
- Holland, Margaret of Kent "Duchess Of Clarence" Countess of Somerset Marchioness of Dorset (Primary)
- Beaufort, John de 1st Earl of Somerset (Primary)
- Family of Beaufort, John de 1st Earl of Somerset and Holland, Margaret of Kent "Duchess Of Clarence" Countess of Somerset Marchioness of Dorset (Family)