# Alexander, Prince of Scotland ( 21 January 1264 Jedburgh – 28 January 1284 Lindores Abbey ); buried in Dunfermline Abbey

* 1314 – Pope Clement V ( b. 1264 )

* 1264 – The Parliament of Ireland meets at Castledermot in County Kildare, the first definitively known meeting of this Irish legislature.

* 1264 – The Battle of Lewes, between King Henry III of England and the rebel Simon de Montfort, 6th Earl of Leicester, begins.

* 1264 – Prince Koreyasu, Japanese shogun ( d. 1326 )

* 1264 – Battle of Lewes: Henry III of England is captured and forced to sign the Mise of Lewes, making Simon de Montfort the de facto ruler of England.

* 1264 – The Kingdom of Castile conquers the city of Jerez that was under Muslim occupation since 711.

He returned to France as a legate for Urban IV and also for his successor Pope Clement IV in 1264 – 1269 and again in 1274 – 1279 under Pope Gregory X.

Pope Clement V, born Raymond Bertrand de Got ( also occasionally spelled de Guoth and de Goth ) ( c. 1264 – 20 April 1314 ) was Pope from 1305 to his death.

Pope Urban IV ( c. 1195 – 2 October 1264 ), born Jacques Pantaléon, was Pope from 1261 to 1264.

* 1264 – The Statute of Kalisz, guaranteeing Jews safety and personal liberties and giving battei din jurisdiction over Jewish matters, is promulgated by Boleslaus the Pious, Duke of Greater Poland.

* 25 November – Prince Koreyasu, Japanese shogun ( b. 1264 )

* 1264 – The Thuringian War of Succession ends.

* 1264 – In Spain, King James I of Aragon reconquers the cities of Orihuela in Alicante and Elx in Valencia from the Moors, ending over 500 years of Islamic rule.

* 1264 – Before May – Second Barons ' War, an English civil war, begins.

* 1264 – May 12 to May 14 – The Battle of Lewes is fought between Simon de Montfort, 6th Earl of Leicester and King Henry III of England in Sussex.

* 1264 – The state of Hesse gains its independence from Thuringia and becomes a free state of the Holy Roman Empire.

* 1264 – June 18 – The Parliament of Ireland meets at Castledermot in County Kildare, the first definitively known meeting of this Irish legislature.

* 1264 to 1267 – The civil war in England known as the Second Barons ' War marks a high point of struggle for political power between the landed aristocracy of England and the King.

* 1264 – In the Peerage of England, the title Baron de Ros, the oldest continuously held peerage title in England, is created by writ of summons.

* April 20 – Pope Clement V ( b. 1264 )

* On April 12, 1264, the master builder Giovanni di Simone and 23 workers went to the mountains close to Pisa to cut marble.

In April 1264, Gilbert de Clare led the massacre of the Jews at Canterbury, as Simon de Montfort had done in Leicester.

Bolesław the Pious () ( 1224 / 27 – 14 April 1279 ) was a Duke of Greater Poland during 1239 – 1247 ( according to some historians during 1239 – 1241 sole Duke of Ujście ), Duke of Kalisz during 1247 – 1249, Duke of Gniezno during 1249 – 1250, Duke of Gniezno-Kalisz during 1253 – 1257, Duke of whole Greater Poland and Poznań during 1257 – 1273, in 1261 ruler over Ląd, regent of the Duchies of Masovia, Płock and Czersk during 1262 – 1264, ruler over Bydgoszcz during 1268 – 1273, Duke of Inowrocław during 1271 – 1273, and Duke of Gniezno-Kalisz since 1273 until his death.

– 25 April 1264 ) was a medieval nobleman who was prominent on both sides of the Anglo-Scottish border, as Earl of Winchester and Constable of Scotland.

In April 1264, he and Roger de Leybourne were besieged by de Montfort at Rochester Castle.

This period spanned the years from February 1264 to April 1275.

On 20 October 1264, Gilbert and his associates were excommunicated by Pope Clement IV, and his lands placed under an interdict.

In 1264 / 5, Robert's lands were seized by Gilbert de Clare, 3rd Earl of Gloucester.

After the baronial victory at the Battle of Lewes in 1264, Simon de Montfort took control of royal government, but at the Battle of Evesham the next year Montfort was killed, and King Henry III restored to power.

At the Battle of Lewes in 1264, the rebellious barons, led by Simon de Montfort, had defeated the royal army and taken King Henry III captive.

In 1264, Benedetto became part of the Roman Curia, where he served as secretary to Cardinal Simon de Brion, the future Pope Martin IV, on a mission to France.

* 1264 – Merton College is founded at the University of Oxford by Walter de Merton.

de: 1264

The charismatic de Montfort and his forces had captured most of southeastern England by 1263, and at the Battle of Lewes on 14 May 1264, Henry was defeated and taken prisoner by de Montfort's army.

* Berenguela Alfonso of Castile, who married after 1264 with Pedro Núñez de Guzmán but she died young leaving behind no descendants.

The town was the site of the Battle of Lewes between the forces of Henry III and Simon de Monfort in the Second Barons ’ War in 1264, at the end of which de Monfort's forces were victorious.

He joined King Henry in fighting against Simon de Montfort's rebels in the Second Barons ' War ( 1264 – 67 ).

In 1264, Amiens was chosen as the seat of arbitrations when King Louis IX of France settled the conflict between King Henry III of England and his rebellious barons, led by Simon de Montfort.

Merton College was founded in 1264 by Walter de Merton, Lord Chancellor and Bishop of Rochester.

He was present at the Parliament held at London in June 1264 that set up the government of Simon de Montfort.

The tradition behind the use of ' Simon ' as the controller of the game may trace back to the year 1264, when at the Battle of Lewes, Simon de Montfort captured King Henry III and his son, the future King Edward I.

The castle was taken in a surprise attack by the forces of Simon de Montfort, 6th Earl of Leicester, from Kenilworth Castle in 1264.