Iorwerth "Drwyndwn" ap OWAIN

Birth:
Abt 1129
of Aberffraw Castle, Anglsy, Wales
Death:
Abt 1184
Marriage:
Abt 1163
of Aberfraw Castle, Anglsy, Wales
Notes:
                   The Royal Lines of Succession, A16A225, p. 23; Eminent Welshmen, Wales 13, p.
244, 245, 369, 370; Dict. of Nat'l Biog., Eng. Pub. A, v. 34, p. 7-13; Temple
Rec. Mary Ann P. Schow, TR 594, p. 4.

Note:  There is documentary evidence according to Eng. Pub. A, v. 34, p. 7,
that the mother of Llewelyn was a member of the border family of Corbet, he
quotes (Eyston, Shropshire, v. 6, p. 160; Monasticon, v. 6, p. 497).  Also see
notation on the family group sheet of Llewelyn "Fawr", Prince of Wales.
                  
Margaret Verch MADOG
Birth:
Abt 1129
of Aberffraw Castle, Anglsy, Wales
Notes:
                   See notes under husband, Iorwerth "Drwyndwn" ap Owain "Gwynedd", for
documentation.
                  
Children
Marriage
1
Birth:
Abt 1164
of Aberffraw, Castle, Anglsy, Wales
Death:
11 Apr 1240
Aberconway, Caernarvonshire, Wales
Marr:
Aft 16 Apr 1205
(Ascensiontide) England 
Notes:
                   The Royal Lines of succession, A16A225, p. 23; Dict. of Nat'l Biog., Eng. Pub. A, v. 34, p. 7-13; Temple Rec. Mary Ann P. Schow, TR 594, p. 5; Eminent
Welshmen, Wales 13; Ped. of Angl. & Carn. Fam., Wales Angl. 1, p. 309.

Note:  The Dictionary of National Biography indicated Gwenllian, child No. 3
above, married William de Lacy and was the daughter of Llewelyn by Tanglwyst.
Some of the less reliable sources indicate she was the daughter of Llewelyn by Joan, Princess of England and that she married Robert de Lacy.  See also
notation on the family group record of the above Gwladys with her first
husband, Reginald de Braose.
                  
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Iorwerth "Drwyndwn" ap Owain - Margaret Verch Madog

Iorwerth "Drwyndwn" ap Owain was born at of Aberffraw Castle, Anglsy, Wales Abt 1129. His parents were Owain "Gwynedd" ap Gruffydd, (Prince of Wales) and Gwladys Verch Llywarch.

He married Margaret Verch Madog Abt 1163 at of Aberfraw Castle, Anglsy, Wales . Margaret Verch Madog was born at of Aberffraw Castle, Anglsy, Wales Abt 1129 daughter of Madog ap Maredudd, (Prince of Powys Fadog) and Susanna Verch Gruffydd .

They were the parents of 1 child:
Llewelyn "Fawr" ap Iorwerth, (Prince of Wales) born Abt 1164.

Iorwerth "Drwyndwn" ap Owain died Abt 1184 .