- Pontefract Castle 20th Century
- 1902 - On 30th July 1902, Hansard’s Parliamentary Debates recorded: ‘ Mohill Union (County Leitrim, Ireland) – Paupers sent from Pontefract to Mohill, Withdrawal of Grant of Five Shillings Outdoor Relief by the Pontefract Guardians.’
- Sandal Castle 15th Century
- 1447 - On 30th July 1447, a nearly eight-years-old Anne Plantagenet, first child of Richard, Duke of York and lord of Sandal Castle, married seventeen-years-old Henry Holland, (later Earl of Exeter). Holland was to prove a thorn-in-the-side for York as he remained loyal to Henry VI and was a commander at the Battle of Wakefield in 1460 at which York perished.
- 1447 - On 30th July 1447, Richard Duke of York and lord of Sandal Castle, was appointed Lieutenant of Ireland for ten years on a fee of 4,000 marks (£3.05 million in today’s money), followed by an annual salary of 2,000 marks.
- 1476 - On 30th July 1476, the funeral services for Richard, Duke of York’s (former lord of Sandal Castle) re-interment at Fotheringhay along with his son, Edmund, were held at St Mary and All Saints Church. After Masses and sermons, ritual offerings of pieces of gold cloth were made. York’s black warhorse, still alive sixteen years after his death, was ridden into the church by Lord Ferrers carrying an axe with the blade facing downwards. York was buried in the choir and Edmund in the lady chapel. A huge feast followed with reportedly up to 20,000 present. York’s widow, Cecily, apparently was absent for an unknown reason.