against the adherents of Thomas of Lancaster in Yorkshire, and afterwards against the Scots. On 26 Sept. he was censured for letting the Scots escape unharmed. During the reign of Edward II he was summoned to various parliaments, and in 1324–5 for service in Guyenne. After the landing of Queen Isabella in September 1326 he joined her at Gloucester (Murimuth, p. 47), and was one of the council of government appointed in the parliament of January 1327 (Stubbs, Const. Hist. ii. 385). On 13 Feb. 1328 he was appointed warden of the marches, and shortly afterwards commissioned to treat for peace with Scotland (Fœdera, ii. 688–9). In the summer he was besieged by Thomas Randolph, earl of Moray [q. v.], at Alnwick (Scalachronica, p. 155). On 5 Sept. he was appointed chief warden of the marches, and on 9 Oct. one of the commissioners to renew the negotiations with Scotland, and assisted in completing the convention at Edinburgh on 17 March 1328, which was ratified by Edward at Northampton on 4 May (Fœdera, ii. 715, 719, 734, 740). On 1 March 1328 he obtained a grant of Warkworth from the king (Cal. Pat. Rolls, Edw. III, p. 243). He had recovered his Scottish lands under the treaty with Bruce. In May 1329 he went over to France with the king, and was present when Edward did homage at Amiens on 6 June (Fœdera, ii. 764–5). During 1331 and 1332 he was employed as a justiciar and warden of the Scottish marches (Bain, iii. 1026, 1032, 1056, 1057). He was with Edward at the siege of Berwick in July 1333, and probably at the battle of Halidon Hill. On 1 Oct. he was appointed to attend Edward Baliol's parliament, and was present at Edinburgh for this purpose in February 1334 (ib. iii. 1094; Fœdera, ii. 876). He had previously been appointed constable of Berwick, and afterwards held the offices of constable of Berwick and Jedworth as compensation for surrendering his claims on Annandale and Lochmaben. In February 1335 he likewise received all the fees of Patrick, earl of March, in Northumberland.
In January 1335 he defeated the Scots, who were raiding in Redesdale (Chron. Edw. I and Edw. II, ii. 121). In the following July he took part in Edward's invasion of Scotland, advancing from Berwick in company with Baliol (Chron. Lanercost, p. 281). In July 1336 he was with Edward III at Perth, and apparently was again in Scotland early in 1337 (Bain, iii. 1209, 1230). In October 1337 he was fighting with the Scots in Allendale, and early in 1338 was sent to besiege Dunbar (ib. iii. 1268; Chron. Lanercost, p. 295). In February 1339 he was a commissioner of array at York, and in October was again directed to help Baliol (Fœdera, ii. 1070, 1093). On 28 April 1340 he was appointed to treat with the Scots, and in June was one of the councillors of the young Duke of Cornwall during Edward's absence abroad (ib. ii. 1122, 1125). During 1341 he defeated the Scots at Farmley (Chron. de Melsa, iii. 49), and was employed in the abortive attempt to relieve Stirling (Bain, iii. 1378). In 1342 he was present at the siege of Nantes (Froissart, iii. 24), and in 1343 was engaged in keeping order on the Scottish marches (Fœdera, ii. 1225, 1230, 1239). In 1345 he took part in defeating the invasion of Cumberland by William Douglas (Ypodigma Neustriæ, p. 285). In July 1346 Percy was one of the guardians of the kingdom during Edward's absence; and when in October David Bruce invaded England, he commanded the first division at the battle of Neville's Cross, where his valour contributed to the English victory (Froissart, iii. 129, iv. 20, 22, ed. Luce; Chron. Lanercost, pp. 348–50). After the battle Percy fell ill, and so could not share in the advance into Scotland (ib. p. 352). On 26 Jan. 1347 he was ordered to serve under Edward Baliol for a year (Bain, iii. 1479), and during this and the following year was engaged in the Scottish marches. He was employed in the negotiations with Scotland in 1349 and 1350, and in 1351 was a commissioner of array in Northumberland. He died on 26 Feb. 1352, and was buried at Alnwick; his will, dated 13 Sept. 1349, is printed in ‘Testamenta Eboracensia,’ i. 57–61 (Surtees Soc.) Percy had been summoned to parliament from 1322. It was through him and his father that ‘the Percies became the hereditary guardians of the north and the scourge of Scotland’ (Burton, Hist. Scotland, iii. 4). The Lanercost chronicler (p. 350) describes him as ‘bonus prœliator, parvus miles et providus.’ He married Idonea (in his will she is called Imania), daughter of Robert Clifford, who died in 1365, and founded a chantry for herself and her husband at Meaux (Chron. de Melsa, iii. 163). By her he had six sons and four daughters.
The eldest son, Henry Percy, third Baron Percy (1322–1368), took part in the campaign of Crécy in 1346 and the expedition to Gascony in 1349. After his father's death he was on several occasions employed as warden of the Scottish marches, and served in Edward's French expedition in 1355 (Avesbury, p. 427). He died on 17 June 1368, having married (1) Mary (1320–1362), daughter of Henry, earl
