Thomas Cranley, Archbishop of Dublin, 1397-1417: from his brass at New College, Oxford. Showing the archiepiscopal mass-vestments and the cross and pall. Date, about 1400.

4. The Statute for the Burning of Heretics. 1401.—In 1401 the clergy cried aloud for new powers. The ecclesiastical courts could condemn men as heretics, but had no power to burn them. Bishops and abbots formed the majority of the House of Lords, and though the Commons had not lost that craving for the wealth of the Church which had distinguished John of Gaunt's party, they had no sympathy with heresy. Accordingly the statute for the burning of heretics (De hæretico comburendo), the first English law for the suppression of religious opinion, was passed with the ready consent of the king and both Houses. The first victim was William Sawtre, a priest who held, amongst other things, "that after the words of consecration in the Eucharist the bread remains bread, and nothing more." He was burnt by a special order from the king and council even before the new law had been enacted.

5. Henry IV. and Owen Glendower. 1400—1402.—If Henry found it difficult to maintain order in England, he found it still more difficult to keep the peace on the borders of Wales. In 1400 an English nobleman, Lord Grey of Ruthyn, seized on an estate belonging to Owen Glendower, a powerful Welsh gentleman. Owen Glendower called the Welsh to arms, ravaged Lord Grey's lands, and proclaimed himself Prince of Wales. For some years Wales was practically independent. English townsmen and yeomen were ready to support Henry against any sudden attempt of the nobility to crush him with their retainers, but they were unwilling to bear the burden of taxation needed for the steady performance of a national task. In the meanwhile Henry was constantly exposed to secret plots. In 1401 he found an iron with four spikes in his bed. In the autumn of 1402 he led an expedition into Wales, but storms of rain and snow forced him back. His English followers attributed the disaster to the evil spirits which, as they fully believed, were at the command of the wizard Glendower.

6. The Rebellion of the Percies. 1402—1404.—The Scots were not forgetful of the advantages to be derived from the divisions of England. They had amongst them some one—whoever he may have been—whom they gave out to be King Richard, and when Henry marched against Wales in 1402 they invaded England. They were met by the Percies and defeated at Homildon Hill. The Percies had still something of the enormous power of the feudal barons of the eleventh century. Their family estates stretched over a great part of Northumberland, and as they were expected to shield England against Scottish invasions they were obliged to keep up a military retinue which might be employed against the king as well as in his service. It was mainly through their aid that Henry had seated himself on the throne. Their chief, the Earl of Northumberland, and his brother, the Earl of Worcester, were aged men, but Northumberland's son, Henry Percy—Harry Hotspur as he was usually called—was of a fiery temper, and disinclined to submit to insult. Hotspur's wife was a Mortimer, and her brother, Sir Edmund Mortimer, the uncle of the young Earl of March, had been taken prisoner by Glendower. It was noticed that Henry, who had ransomed other prisoners, took no steps to ransom Mortimer, and it was believed that he was in no hurry to set free one whose hereditary claim to the crown, like that of the Earl of March, came before his own. Other causes contributed to irritate the Percies, and in 1403, bringing with them as allies the Scottish prisoners whom they had taken at Homildon Hill, they marched southwards against Henry. Southern England might not be ready adequately to support Henry in an invasion of Wales, but it was in no mood to allow him to be dethroned by the Percies. It rallied to his side, and enabled him signally to defeat the Percies at Shrewsbury. Hotspur was killed in the fight, and his uncle, the Earl of Worcester, being captured, was beheaded without delay. Northumberland, who was not present at the battle, was committed to prison in 1404, but was pardoned on promise of submission.