English magnate of Edward I's generation who routed the Scottish army at Dunbar in 1296, governed Scotland as warden, and lost it again at Stirling Bridge in 1297.
John de Warenne held the earldom of Surrey for sixty-four years and served three English kings, but the year that fixed his reputation was 1297. He had beaten the Scottish host at the Battle of Dunbar in April 1296 - a rout of his own son-in-law's army, since his daughter Isabella was John Balliol's wife - and Edward I of England made him warden of the conquered kingdom. Seventeen months later, at the Battle of Stirling Bridge, he let half his army file across a narrow wooden bridge before the other half could follow, watched it destroyed from the south bank, and rode for Berwick.
The rest of his career was the ordinary life of a great Plantagenet magnate: fighting for Henry III of England at the Battle of Lewes and then in exile after it, defending baronial franchises against Edward I's lawyers in the quo warranto hearings of the 1270s, commanding a division at the Battle of Falkirk in 1298. He died in 1304 and was buried at Lewes Priory, the Warenne family's own foundation, leaving the earldom to a grandson of the same name.
He was born in 1231, the only son of William de Warenne, 5th Earl of Surrey, and Maud Marshal, a daughter of William Marshal. His father was killed in 1240 and the boy inherited one of the great compact lordships of England - Surrey and Sussex with the castles of Lewes and Reigate, Conisbrough and Sandal in Yorkshire, and Castle Acre in Norfolk - while still a royal ward.
In 1247 Henry III married him to Alice de Lusignan, the king's own half-sister, one of a set of marriages by which Henry tied his Poitevin relatives into the English baronage. The match made Warenne a member of the royal family's inner circle and bound him to the faction that the reform movement of 1258 would spend a decade trying to expel. Alice died in 1256 and he did not marry again.
The most famous thing ever said about him he probably never said. The chronicle tradition has Warenne, called before Edward I's justices in 1278 to prove by what warrant he held his lands, produce an old rusty sword and answer that his ancestors came with William the Bastard and won their lands with the sword, and that he would defend them with the sword against anyone who tried to take them. The story is not contemporary with the hearings, and historians treat it as a later dramatisation of baronial feeling about quo warranto rather than a transcript. That it attached itself to Warenne, of all the earls examined, says how his contemporaries thought of him: as the plain, unbookish embodiment of inherited right.
His military reputation is harder on him, and the two battles that made it invite the comparison. At Dunbar he read a confused situation correctly, reformed his broken ranks on the level ground and destroyed a Scottish army in a single charge. At Stirling Bridge he ignored a Scot in his own service who offered to take sixty horse abreast across a ford two miles upstream, let his treasurer talk him into the cheaper option, and sent his men over a bridge two abreast into a loop of the Forth. English writers afterwards blamed Hugh de Cressingham, who was killed there and could not answer; the decision was Warenne's.
What the record supports is neither a fool nor a soldier of the first rank, but a conventional great magnate of his generation - loyal to the crown through two wars, careful of his own franchises against that same crown's lawyers, and out of his depth in command of an occupation he had not wanted. He was sixty-six at Stirling Bridge, had been an earl for fifty-seven years, and had never faced anything like Andrew Moray and William Wallace.
Warenne's loyalties in the crisis of 1258 to 1265 followed his marriage. He had sworn to the Provisions of Oxford with the other magnates, but by 1263 he was firmly on the royalist side against Simon de Montfort, 6th Earl of Leicester, and he fought for the king at the Battle of Lewes in May 1264 - within sight of his own castle and of the priory where he would be buried. When the royal army broke and Henry III was taken, Warenne did not surrender: he rode to Pevensey and took ship for the Continent, where he stayed about a year.
He came back in 1265 with the tide, and was in the fighting that finished the reform movement - at the Battle of Evesham, then at Chesterfield the following year, and at the long siege of Kenilworth that ended the war. Under Edward I he was one of the senior figures of the realm: a commander in Wales, a witness to the great charters of the reign, and one of the earls whose franchises the quo warranto inquiries of the 1270s examined. His seal hangs from the Barons' Letter to the pope of 1301, and the Caerlaverock poem of 1300 lists him among the magnates at the siege.
When Edward I invaded Scotland in the spring of 1296 he brought Warenne with him. Berwick was stormed on 30 March and its people massacred; Dunbar Castle, whose lord was with Edward, was handed to the Scots by his countess while he was away, and Edward detached Warenne to take it back. A Scottish army marched to relieve the castle and took a good position on the high ground above the Spott Burn.
Warenne's men had to cross the gully of the burn to reach them, and no formation crosses broken ground in order. From above, the descent looked like an army coming apart, and the Scots left their hill to chase what they took for a retreat. Warenne reformed on the level of Spottsmuir and charged once into a crowd. The rout was total and the casualties famously light - Sir Patrick Graham is the one notable Scottish death recorded - but around a hundred Scottish nobles were taken, John Balliol abdicated ten weeks later, and on 22 August 1296 Warenne was appointed warden of the kingdom and land of Scotland.
The conquest did not hold for a year. Risings broke out across Scotland in 1297 - Andrew Moray in the north-east, William Wallace in the south-west - and by the late summer the two had joined and were besieging Dundee. Warenne came north with a royal army strong in cavalry and reached Stirling, where the Forth could be crossed by a narrow wooden bridge that took two horsemen abreast.
On 11 September he sent two Dominican friars to offer terms and got Wallace's answer, that the Scots were not there to make peace but to free their kingdom. Sir Richard Lundie, a Scottish knight in English service, offered to take sixty horse abreast over a ford two miles upstream and take the Scots in the rear; Hugh de Cressingham, Edward's treasurer in Scotland and the man paying for the campaign, argued for the direct crossing on grounds of cost. Warenne agreed with Cressingham.
About two thousand men were across when the Scots came down off the Abbey Craig and cut the bridgehead off against the loop of the river. The vanguard was destroyed where it stood. Cressingham was killed and, the chronicles say, flayed. Warenne, watching from the south bank with the larger part of his army uncommitted, ordered the bridge broken, abandoned the field and the Lowlands, and rode for Berwick, leaving the garrison of Stirling Castle to its fate.