A raiding column of about four hundred English knights rode out of the fog outside Alnwick on 13 July 1174 and captured William the Lion, king of Scots, whose ransom was the Treaty of Falaise and fifteen years of English overlordship.
On the morning of 13 July 1174, a column of about four hundred mounted knights that had ridden north from Newcastle in the dark came out of thick fog in front of Alnwick Castle and found the king of Scots sitting outside it with a few dozen companions. William the Lion, who had been besieging the castle while the bulk of his army was off plundering Northumberland, charged them, had his horse killed under him and was taken prisoner. The fighting lasted minutes.
It was the most consequential skirmish of the twelfth century in Britain. William had joined the great revolt against Henry II of England in exchange for the promise of Northumbria; his capture knocked the northern front out of that revolt at a stroke, and the terms he accepted to get out of captivity - the Treaty of Falaise - made the king of Scots the liege man of the king of England for Scotland itself. That submission lasted fifteen years, and the claim it created outlived its cancellation.
This is not the other battle fought at Alnwick. On 13 November 1093, eighty-one years earlier, Malcolm III of Scotland and his son Edward were killed outside the same castle by the men of Robert de Mowbray, Earl of Northumbria - a different war, a different Scottish king, and a defeat that cost Scotland its ruler rather than his liberty.
In 1173 Henry II’s eldest son, the crowned but powerless Henry the Young King, rebelled, and most of the Angevin world went with him: his brothers Richard and Geoffrey, his mother Eleanor of Aquitaine, Louis VII of France, the Count of Flanders, and the English earls of Leicester, Norfolk and Chester. Henry had built an empire out of inheritance, marriage and relentless administration, and in 1173 nearly all of it turned on him at once.
William the Lion joined for a specific price. He had held the earldom of Northumbria in his own right until Henry took it back from him in 1157, and he had wanted it ever since; the Young King promised it to him for his support. William invaded in 1173 and again in 1174, and his campaigns showed the weakness that undid him: he could not take fortified places. He failed before Wark, Carlisle and Prudhoe, and his army, largely unpaid, worked by spreading out to burn and plunder rather than by concentrating.
By July 1174 Henry had come back across the Channel to deal with England in person, landing on 8 July. On 12 July he did public penance at Canterbury for the murder of Thomas Becket, walking barefoot to the tomb and submitting to a scourging from the monks. The next morning, three hundred miles to the north, his enemy was taken. Chroniclers drew the obvious conclusion and credited Becket with the victory; the coincidence was too useful to the king’s reconciliation with the church for anyone at the time to argue with it.
The English force was not a royal army but a raiding column drawn from the northern garrisons and the Yorkshire baronage, put together while Henry was still in the south. It was led by Ranulf de Glanvill, sheriff of Yorkshire and later Henry’s justiciar of England, and included Bernard de Balliol and Odinel de Umfraville, lord of Prudhoe, whose own castle William had just failed to take and who had a personal stake in the business.
They left Newcastle on the night of 11 July and rode some twenty-five miles north through darkness and then thick summer fog. The mist was dangerous to them as well: accounts describe a column that briefly did not know where it was and debated turning back, and it is not clear whether they found William by good scouting, by information, or by luck. What is clear is the result of riding blind - they arrived unannounced, which no body of four hundred horsemen could otherwise have done in daylight in hostile country.
The fullest account comes from Jordan Fantosme, whose verse chronicle of the war is detailed enough about this scene that historians generally take him to have been present. William of Newburgh and Roger of Howden also record the capture, and the three agree on the essentials: the fog, the small English force, the Scottish king’s isolation, and how quickly it was over.
William had let his army disperse. The Scots were raiding in small companies across Northumberland, and the king had stayed before Alnwick with his own household - about sixty men in the chronicle accounts - in the belief that no English force in the region was large enough to trouble him. The knights who came out of the mist were a hundred yards away before anyone understood what they were.
He could have run. Instead, in the version the chroniclers preferred, he shouted that they would see whether he was a knight and rode straight at them. It was brave and it was foolish, and Doyle’s Victorian engraving of the moment has fixed that reading for later readers. His horse was killed and fell on him; he was pinned, taken alive, and his surviving companions surrendered with him. His feet were tied beneath a horse’s belly for the ride to Newcastle.
The Scottish war ended with him. The scattered raiding companies had no command and no reason to stay, and the northern front of the revolt simply stopped. Henry, told at Westminster, is said to have taken it as proof that the penance had worked. He had his prisoner moved from Newcastle to Northampton and then shipped across the Channel to the castle of Falaise in Normandy, the safest place in his dominions to keep a king.
The price of release was settled in captivity and issued at Valognes on 8 December 1174. William became the liege man of Henry II "against every man in respect of Scotland" - the decisive phrase, because it attached the homage to the kingdom rather than to the English lands a Scottish king happened to hold. Earlier Scottish kings had done homage in vague and personal terms; this was written down, and it said Scotland.
The rest enforced it. Five castles - Roxburgh, Berwick, Jedburgh, Edinburgh and Stirling - were handed over to English garrisons, paid for out of Scottish revenues, so that the Scottish king financed his own occupation. The Scottish church was required to submit to the English church, which the Scottish bishops resisted successfully for years, since Rome had its own views about who ordered the Scottish province. The agreement was sealed and read aloud before the Scottish nobles and clergy at York on 10 August 1175.
The wider revolt collapsed on the same timetable. With England secure and the Scottish king in a Norman castle, Henry crossed back to raise the siege of Rouen, and his sons submitted at Montlouis on 30 September 1174. Eleanor of Aquitaine, who had backed them, spent most of the next fifteen years in confinement.
Henry II died in 1189, and his successor needed money more than he needed Scotland. On 5 December 1189 Richard the Lionheart, raising funds for the Third Crusade by selling anything that could be sold, issued the Quitclaim of Canterbury: for 10,000 marks he released William from the homage and the obligations of Falaise and returned the castles of Roxburgh and Berwick. Scotland bought its independence back for cash, and William reigned until 4 December 1214, the longest Scottish reign before the seventeenth century.
The document did not die with the transaction. Falaise had put on parchment the proposition that the king of Scots owed homage for his kingdom, and English lawyers remembered it. When the Scottish royal line failed after 1290, Edward I - who had learned his own trade in the Second Barons’ War and at the Battle of Evesham - required the competitors for the throne to recognise him as overlord before he would arbitrate, and the precedents produced for that claim reached back to 1174. The Scots answered that the homage had been extorted from a prisoner and cancelled for value in 1189.
That argument was settled in the field rather than the archive. It ran through the Battle of Stirling Bridge in 1297 and the Battle of Bannockburn in 1314, and the case the Scots put to the papacy in the Declaration of Arbroath in 1320 was in part an answer to it. A skirmish in the fog that lasted a few minutes had supplied one side of a constitutional quarrel that outlasted everyone present at it.