Perkin Warbeck's landing at Cork and the Tudor pacification of Ireland (1490s)

Timeline

1. 1491–1492Dublin · LeinsterPerkin Warbeck landed at Cork in November 1491, claiming to be 'Richard IV', and won the support of Cork mayor John Atwater and the Earl of Desmond, challenging Henry VII's overlordship of Ireland and triggering one of the most serious Irish political crises of the early Tudor period.
2. 1492–1496Ireland · IrelandThe Earls of Kildare maintained actual control over much of Ireland in the 1490s, but the 8th Earl himself, suspected of involvement with Warbeck, was summoned to England in 1494 and imprisoned in the Tower of London, regaining the deputyship after swearing loyalty in 1496. Warbeck also gained the Earl of Desmond's support, and friction between Gaelic chieftains and the English colonial administration was constant.
3. 1496–1497Ireland · IrelandThrough the Poynings' Laws (1494–1495), Henry VII established English parliamentary control over Irish legislation and used diplomatic and military pressure to force Scotland to abandon support for Warbeck. Warbeck failed to take Waterford in 1495, was defeated again in 1497 and surrendered; the Irish crisis eased by the late 1490s, but underlying tensions remained unresolved, setting the stage for larger conflicts in the 16th century.