Rhys ap Gruffydd (rebel)

Rhys ap Gruffydd (1508–1531) was a powerful Welsh landowner who was accused of rebelling against King Henry VIII by plotting with James V of Scotland to become Prince of Wales. He was executed as a rebel. He married Lady Catherine Howard (b. abt 1499 Ashwellthorpe, Norfolk, England), the daughter of Thomas Howard, 2nd Duke of Norfolk and his second wife Agnes Tilney.

Rhys was the grandson of Rhys ap Thomas, the most powerful man in Wales and close ally of Henry VII. Rhys was a descendant of the medieval Welsh king Rhys ap Gruffydd (1132–1197), his namesake. His father, Gruffydd ap Rhys ap Thomas, died in 1521, leaving him his grandfather's heir. In 1524 Rhys married Catherine Howard, daughter of Thomas Howard, 2nd Duke of Norfolk.

As his grandfather's heir, Rhys expected to inherit his estates and titles. When Rhys ap Thomas died in 1525, Henry VIII gave his most important titles and powers to Walter Devereux, Lord Ferrers, leading to a feud between Rhys and Ferrers which escalated over the next few years.

Rhys attempted to increase his status in Wales, petitioning Cardinal Thomas Wolsey to be given various posts. Potential for conflict with Ferrers increased when both men were given the right to extend their number of retainers; this led to the emergence of competing armed gangs. The bad-blood between Rhys and Ferrers reached a crisis-point in June 1529 when Ferrers made a display of his status during preparations for the annual Court of Great Sessions in Carmarthen. Rhys, surrounded by forty armed men, threatened Ferrers with a knife. Rhys was arrested and imprisoned in Carmarthen Castle. Rhys's wife Catherine escalated the situation by collecting hundreds of her supporters and attacking the castle. She later threatened Ferrers himself with an armed gang. In the conflict between the two factions several of Ferrers's men were killed. The factions continued to cause other disruptions over the coming months, leading to deaths in street-fights and acts of piracy.

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