11th century in Wales

10th century | 12th century | Other years in Wales

Other events of the century

This article is about the particular significance of the century 1000 - 1099 to Wales and its people.

Events

1005

• Aeddan ap Blegywryd succeeds Cynan ab Hywel as Prince of Gwynedd.

1018

• Llywelyn ap Seisyll defeats Aeddan ap Blegywryd in battle; Aeddan and his four sons are killed.

1022

• Llywelyn ap Seisyll defeats the pretender Rhain at Abergwili.

1045

• Gruffydd ap Rhydderch expels Gruffydd ap Llywelyn from Deheubarth.

1055

• October 24 - Gruffydd ap Llywelyn defeats Ralph the Timid and sacks Hereford. He is now ruler of all Wales.

1056

• Gruffydd ap Llywelyn defeats an English army at Glasbury.

1062

• Harold Godwinson makes a surprise attack on Gruffydd ap Llywelyn at Rhuddlan; Gruffydd escapes.

1063

• Tostig leads an army into north Wales.

1070

• Battle of Mechain between the sons of Gruffydd ap Llywelyn and the sons of Cynfyn ap Gwerstan of Powys.
• Bleddyn ap Cynfyn enacts new laws regulating the activities of bards and musicians.

1081

• Battle of Mynydd Carn: Gruffydd ap Cynan and Rhys ap Tewdwr defeat Trahaearn ap Caradog, Caradog ap Gruffydd and Meilir ap Rhiwallon.

1099

• Gruffydd ap Cynan regains the throne of Gwynedd.

Births

1054

• probable - Robert II, Duke of Normandy (a prisoner in Cardiff Castle during the 12th century)

Deaths

1005

• date unknown - Cynan ap Hywel, Prince of Gwynedd

1018

• date unknown - Aeddan ap Blegywryd, Prince of Gwynedd

1023

• date unknown - Llywelyn ap Seisyll, King of Gwynedd and Deheubarth

1033

• date unknown - Rhydderch ap Iestyn, ruler of Gwent, Morgannwg, Deheubarth and Powys

1044

• date unknown - Hywel ab Edwin, Prince of Deheubarth

1039

• date unknown - Iago ab Idwal ap Meurig, Prince of Gwynedd

1055

• date unknown - Gruffydd ap Rhydderch (in battle)

1063

• August 5 - Gruffydd ap Llywelyn, ruler of Wales (assassinated)

1075

• date unknown - Bleddyn ap Cynfyn, Prince of Gwynedd and Powys

1081

• At the Battle of Mynydd Carn (date unknown)
  • Trahaearn ap Caradog, Prince of Gwynedd
  • Caradog ap Gruffydd