- Pontefract Castle 13th Century
- 1229 - On 6th February 1229, Henry III broke off negotiations with the papal legate concerning the status of Gascony and the recovery of the Saintonge and Poitou after consulting with the Earls of Chester, Pembroke, Derby and Gloucester and John de Lacy, informing his tenants-in-chief and household knights an expedition to France was imminent.
- Pontefract Castle 14th Century
- 1310 - On 6th February 1310, Sir Henry de Lacy, lord of Pontefract, was made Steward of the Manor of Brunne (Bourne Castle), Lincolnshire.
- 1397 - On 6th February 1397, all of John of Gaunt’s, lord of Pontefract, Beaufort children by Katherine Swynford (John, Henry, Thomas and Joan) were proclaimed by royal charter to be legitimate in English law ‘as if born in wedlock’ and four days later John was raised to the peerage of the Earl of Somerset in recognition of his bravery and exemplary service overseas.