At a Parliament in Inverness (1427) he seized the greatest of the Highland magnates whom he had summoned; they were hanged or imprisoned, and, after resistance, Alastair, the new Lord of the Isles, did penance at Holyrood, before being immured in Tantallon Castle. His cousin, Donald Balloch, defeated Mar at Inverlochy (where Montrose later routed Argyll) (1431). Not long afterwards Donald fled to Ireland, whence a head, said to be his, was sent to James, but Donald lived to fight another day. Without a standing army to garrison the inaccessible Highlands, the Crown could neither preserve peace in those regions nor promote justice. The system of violent and perfidious punishments merely threw the Celts into the arms of England. Execution itself was less terrible to the nobles than the forfeiting of their lands and the disinheriting of their families. None the less, James (1425-1427) seized the lands of the late Earl of Lennox, made Malise Graham surrender the earldom of Strathearn in exchange for the barren title of Earl of Menteith, and sent the sufferer as a hostage into England. The Earl of March, son of the Earl who, under Robert III., had gone over to the English cause, was imprisoned and stripped of his ancient domains on the Eastern Border; and James, disinheriting Lord Erskine, annexed the earldom of Mar to the Crown. In a Parliament at Perth (March 1428) James permitted the minor barons and freeholders to abstain from these costly assemblies on the condition of sending two "wise men" to represent each sheriffdom: a Speaker was to be elected, and the shires were to pay the expenses of the wise men. But the measure was unpopular, and in practice lapsed. Excellent laws were passed, but were not enforced. In July-November 1428 a marriage was arranged between Margaret the infant daughter of James and the son (later Louis XI.) of the still uncrowned Dauphin, Charles VIII. of France. Charles announced to his subjects early in 1429 that an army of 6000 Scots was to land in France; that James himself, if necessary, would follow; but Jeanne d'Arc declared that there was no help from Scotland, none save from God and herself. She was right: no sooner had she won her victories at Orleans, Jargeau, Pathay, and elsewhere (May-June 1429) than James made a truce with England which enabled Cardinal Beaufort to throw his large force of anti-Hussite crusaders into France, where they secured Normandy. The Scots in France, nevertheless, fought under the Maid in her last successful action, at Lagny (April 1430). An heir to the Crown, James, was born in October 1430, while the King was at strife with the Pope, and asserting for King and Parliament power over the Provincial Councils of the Church. An interdict was threatened, James menaced the rich and lax religious orders with secular reformation; settled the Carthusians at Perth, to show an example of holy living; and pursued his severities against many of his nobles.