Old Dead Relatives

The genealogy of my extended family

Who's Your Daddy?
First Name

Last Name
King Llywelyn AP SEISYLL

King Llywelyn AP SEISYLL

Male Abt 980 - 1023  (~ 43 years)

Personal Information    |    Notes    |    Sources    |    Event Map    |    All    |    PDF

  • Name Llywelyn AP SEISYLL 
    Prefix King 
    Born Abt 980  Rhuddlan, Flintshire, Wales Find all individuals with events at this location 
    Gender Male 
    Occupation King of Gwynedd and Deheubarth, Prince of Wales 
    Died 1023 
    Person ID I35243  Main
    Last Modified 20 Aug 2017 

    Family Queen Angharad MAREDUDD,   b. Abt 982,   d.
    Children 
    +1. King Gruffydd AP LLYWELYN,   b. 1007, Deheubarth, Wales Find all individuals with events at this location,   d. 5 Aug 1053, Snowdonia, Wales Find all individuals with events at this location  (Age 46 years)
    Last Modified 23 Oct 2023 
    Family ID F12377  Group Sheet  |  Family Chart

  • Event Map
    Link to Google MapsBorn - Abt 980 - Rhuddlan, Flintshire, Wales Link to Google Earth
     = Link to Google Earth 
    Pin Legend  : Address       : Location       : City/Town       : County/Shire       : State/Province       : Country       : Not Set

  • Notes 
    • 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. Also called Llywelyn ap Seisyllt.

      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 s/o 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. [1]

  • Sources 
    1. [S76] Wikipedia.


Notes

This website uses dates from the Gregorian calendar (New Style), unless otherwise noted.

For more information on dates, see Wikipedia: Old Style and New Style dates.

I strive to document my sources. However, some people and dates are best guesses and will be updated as new information is revealed. If you have something to add, please let me know.

Updated 23 Dec 2023