English invasion of Scotland (1400) the Solway Firth. As Historian Chris Given-Wilson has put it, 'England's confusion was Scotland's opportunity,' and in May 1399 Wark Castle was destroyed by a Scottish raid. The invasion, then, started being planned alsmost as soon as Henry took the throne. At least one historian has noted a tradition, by then, of newly crowned kings of England launching military campaigns at the beginning of their reigns. Edward III had done so the same year his reign commenced; Richard II immediately on reaching his majority, and Henry V would do so within three years. These campaigns have been summarised as "enforcing...royal
Windsor Castle "self-consciously aesthetic, muscled, martial architecture". Edward placed William of Wykeham in overall charge of the rebuilding and design of the new castle and whilst work was ongoing Edward stayed in temporary accommodation in the Round Tower. Between 1350 and 1377 Edward spent £51,000 on renovating Windsor Castle; this was the largest amount spent by any English medieval monarch on a single building operation, and over one and a half times Edward's typical annual income of £30,000. Some of the costs of the castle were paid from the results of ransoms following Edward's victories at the battles of Crécy, Calais and