10th century in Wales
# 10th century in Wales

This article is about the particular significance of the century 901–1000 to Wales and its people.

## Events

905

* The kingdom of Dyfed passes to Hywel Dda as a result of his marriage to Elen, the daughter of Llywarch ap Hyfaidd, following the death of Llywarch's heir, Rhydderch.

920

* Hywel Dda unites the kingdoms of Dyfed and Seisyllwg to create Deheubarth.

928

* King Æthelstan of England receives the submission of Welsh kings, including Hywel Dda, and sets the border of Wales at the River Wye.

969

* Iago ab Idwal imprisons his brother Ieuaf ap Idwal.

985

* Cadwallon ab Ieuaf becomes King of Gwynedd.

986

* Maredudd ab Owain becomes King of Gwynedd, after disposing of its previous ruler, Cadwallon ab Ieuaf.

987

* Maredudd ab Owain becomes King of Deheubarth.

992

* Maredudd ab Owain attacks Morgannwg.

999

* Cynan ap Hywel becomes King of Gwynedd.
* Vikings sack St David's and murder the bishop, Morgeneu.

## Births

* date unknown - Llywelyn ap Seisyll, King of Gwynedd and Deheubarth (d. 1023)

## Deaths

900

* Merfyn ap Rhodri, prince of Gwynedd

909

* Cadell ap Rhodri, King of Seisyllwg

916

* Anarawd ap Rhodri, King of Gwynedd

942

* Idwal Foel, King of Gwynedd

950

* Hywel Dda, King of most of Wales

953

* Haearnddur, son of Merfyn ap Rhodri (probable)

979

* Iago ab Idwal, King of Gwynedd

985

* Hywel ab Ieuaf, King of Gwynedd

986

* Cadwallon ab Ieuaf, King of Gwynedd

987

* Owain ap Hywel, King of Deheubarth

999

* Maredudd ab Owain, King of Gwynedd and Deheubarth
* Morgeneu, Bishop of St David's (in Viking raid)
