Crisis of James III's Reign in Scotland (1470s)

Timeline

1. 1471–1474Scottish Lowlands · ScotlandAfter his 1469 marriage to Margaret of Denmark, James III gradually threw off the regency influence of the Boyd family. In the early 1470s the king moved against the Boyds through confiscations of estates and reassignment of officials, relying on court favourites and heavy taxes for funding, which provoked widespread discontent among the great Lowland nobles and opened a rift in the tradition of shared rule between crown and nobility.
2. 1474York · EnglandAfter the Yorkist restoration of 1471 in the Wars of the Roses, James III and Edward IV signed a treaty in 1474: both pledged not to support each other's rebels, coordinated border security, and addressed trade and marriage arrangements. This temporarily eased Anglo-Scottish border tensions, but Scottish nobles still used English affairs to constrain royal power.
3. 1479–1480Scottish Borders · EnglandIn 1479 the Duke of Albany, in exile in England, invaded Scotland again with Edward IV's backing, and some Lowland nobles answered him. Though James III temporarily checked the rebels, royal prestige suffered; the dominance of court favourites and fiscal exactions intensified noble opposition, laying the groundwork for his son James IV's later defection and patricide.