Which 1464 battle in Northumberland preceded Hexham by three weeks?

The 1464 battle in Northumberland that preceded Hexham by about three weeks was the Battle of Hedgeley Moor.

The Yorkist army was led by John Neville, Lord Montagu, while the Lancastrians were commanded by Henry Beaufort, Duke of Somerset. Montagu was moving north to escort Scottish negotiators safely to York, but Lancastrian activity made the journey dangerous and brought the two forces into contact.

Fighting began with archery before the Yorkists advanced across the moor. The Lancastrian left wing broke first, and the rest of the army soon collapsed. Sir Ralph Percy stayed behind with his household troops and was killed after making a final stand. The battle was a Yorkist victory, but it did not completely destroy Lancastrian resistance in the north.

Hedgeley Moor helped clear the route to York for negotiations with Scotland. The decisive follow-up came at Hexham on 15 May 1464, where Montagu defeated the Lancastrians again. Somerset was captured and executed after Hexham, effectively ending organized Lancastrian resistance in Northumberland for several years.