Llywelyn ap Seisyll

Llywelyn ap Seisyll (died 1023) was a King of Gwynedd and of Deheubarth in north-west and south-west Wales, also called King of the Britons by the Annals of Ulster.


Little is known about Llywelyn's father Seisyll, who may not have been of Royal blood. According to some genelogies Siesyll and his son Llywelyn were associated with Rhuddlan, perhaps originally as lords of the Rhuddlan commote in Tegeingl. [ http://homepage.mac.com/donok/PS03/PS03_334.HTM LLYWELYN Ap SEISYLL] Llywelyn's wife Angharad was the daughter of Maredydd ab Owain, who ruled much of both northern and southern Wales for a period.

Military successes

Llywelyn won control of Gwynedd in 1018 when he defeated Aeddan ap Blegywryd in battle, killing him and his four sons. He later gained control of Deheubarth, defeating Rhain, an Irish pretender who claimed to be the son of Maredudd ab Owain, at Abergwili in 1022.

According to the annals in Brut y Tywysogion, Llywelyn's reign was a period of prosperity, "there was no one needy in his realm, and there was no town empty or deserted". His reign was cut short by his premature death in 1023.


His son, Gruffydd ap Llywelyn, though still a youth when his father died, was later able to gain control of almost the whole of Wales.




* [http://homepage.mac.com/donok/PS03/PS03_334.HTM] LLYWELYN Ap SEISYLL


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  • Llywelyn ap Seisyll — (974? †1023) était un roi de Gwynedd de 1005 à 1023 et de Deheubarth de 1018 à 1023. Sommaire 1 Origine 2 Règne 3 Postérité …   Wikipédia en Français

  • Llywelyn — (Aussprache: /ɬə wɛlɪn/ (walisisch) bzw. /ləˈwɛlɪn/ (englisch)), ist ein walisischer Name. Es existieren auch die Schreibweisen Llewelyn und Llewellyn. Llywelyn ist Bestandteil des Namens mehrerer walisischer Herrscher und ihrer Nachkommen: als… …   Deutsch Wikipedia

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  • Seisyll Bryffwrch — (fl. 1155 1175) was a Welsh language poet. Seisyll competed against and was defeated by Cynddelw in a contest for the role of chief court poet to Madog ap Maredudd, prince of Powys.Seisyll s own compositions include elegies on the death of Owain… …   Wikipedia

  • Gruffydd ap Llywelyn — See also Gruffydd ap Llywelyn Fawr Gruffydd ap Llywelyn (c. 1007 ndash; August 5, 1063), was the ruler of all Wales from 1055 until his death, one of very few able to make this boast. Known as King of the Britons, he was great great grandson to… …   Wikipedia

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  • Gruffydd ap Llywelyn — (n. 1007 – f. 1063) fue el gobernante de todo el país de Gales desde al año 1055 hasta su muerte, el único monarca gales que consiguió extender su influencia sobre todo el territorio. Conocido como «Rey de los Britanos», era el bisnieto de Hywel… …   Wikipedia Español

  • Gruffydd ap Llywelyn — (* um 1000; † 5. August 1063) war von 1055 bis zu seinem Tod Herrscher von ganz Wales – einer der wenigen Waliser, denen dies gelang. Er gehörte einer Kadettenlinie des Fürstenhauses Mathrafal von Powys an und war ein Ururenkel von Howell dem… …   Deutsch Wikipedia

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