2 August - Edward I returns to England from the Ninth Crusade.
19 August - Coronation of Edward I.
The Hundred Rolls are commissioned, enquiring into the rights of English landowners.
Merton College, Oxford receives its statutes, the first English university college to do so.
1275
22 April - Edward I's first parliament meets and passes the first Statute of Westminster, codifying the existing law in England, in 51 chapters of Norman French, and defining legal privileges.
May - Parliament imposes the first regular customs duty on wool and leather.
11 September - Earthquake in southern England damages churches at Glastonbury.
Llywelyn ap Gruffudd refuses to pay homage to Edward I; Llywelyn's proxy bride Eleanor de Montfort (Edward's cousin) is captured at sea off the south-west of England and held prisoner at Windsor Castle as a bargaining counter for Llywelyn's compliance.
New statute forbids Jews from charging interest on loans.
1276
November - Edward I invades Wales.
Merton College, Oxford, is first recorded as having a collection of books, making its Library the world's oldest in continuous daily use.
1277
9 November - Treaty of Aberconwy: Llywelyn to retain control of Gwynedd in return for paying homage to England; Edward to rule the remainder of Wales.
St George's Cross is first recorded in use as the national flag of England.
1278
June or July - Robert Burnell elected to the Archbishopric of Canterbury.
7 August - Statute of Gloucester defines competences of local courts and establishes legal procedures for claiming a right to privileges.
13 October - The King allows his cousin Eleanor de Montfort to marry Llywelyn ap Gruffudd at Worcester Cathedral.
17 November - All Jews in England imprisoned on suspicion of coin clipping.
1279
January - Pope Nicholas III quashes the election of Robert Burnell to the Archbishopric of Canterbury.