Cecily verch Madog
- 1016
1. Cecily verch Madog was born in Aberffraw, Anglesey, Wales; died in 1016 in Wales. Family/Spouse: Idwal ap Meurig. Idwal (son of Meurig ap Idwal and ap idwal) was born about 945 in Anglesey, Wales; died about 996 in Anglesey, Wales. [Group Sheet] [Family Chart]
Children:
- 2. Prince of Wales Idwal ap Iago
was born about 974 in Aberffraw, Anglesey, Wales; died in 1039 in Aberffraw, Anglesey, Wales.
- 2. Prince of Wales Idwal ap Iago
Generation: 2
2. 
Prince of Wales Idwal ap Iago (1.Cecily1) was born about 974 in Aberffraw, Anglesey, Wales; died in 1039 in Aberffraw, Anglesey, Wales. Family/Spouse: Afandreg verch Gwair. Afandreg was born in Malltraeth, Anglesey, Wales; died in 1060 in Malltraeth, Anglesey, Wales. [Group Sheet] [Family Chart]
Children:
- 3. Cynan ap Iago was born in 1014 in Anglesey, Wales; died in 1051.
- 3. Cynan ap Iago
Generation: 3
3. Cynan ap Iago (2.Idwal2, 1.Cecily1) was born in 1014 in Anglesey, Wales; died in 1051. Cynan married Rhanullt O'OlafCaernarvonshire, Wales. Rhanullt (daughter of Olaf Sihtricson and Maelcorcre Ingen O'Muiredaig) was born in 1031 in Dublin, Ireland; died in 1076 in Dublin, Ireland. [Group Sheet] [Family Chart]
Children:
- 4. Gruffydd ap Cynan was born in 1055 in Caernarvonshire, Wales; died in 1137 in Caernarvonshire, Wales.
Cynan married Ragnhildr in 1036. was born in 1024; died in 1056. [Group Sheet] [Family Chart]
- 4. Gruffydd ap Cynan
Generation: 4
4. Gruffydd ap Cynan (3.Cynan3, 2.Idwal2, 1.Cecily1) was born in 1055 in Caernarvonshire, Wales; died in 1137 in Caernarvonshire, Wales. Gruffydd married Angharad verch Owain in 1085 in Gwynedd, Wales. Angharad was born in 1065 in Flintshire, Wales; died in 1162 in Flintshire, Wales. [Group Sheet] [Family Chart]
Children:
- 5. Princess consort of Deheubarth Gwenllian verch Gruffydd was born in 1090 in Caernarvonshire, Wales; died in 1136 in Kidwelly, Carmarthenshire, Wales.
- 5. Princess consort of Deheubarth Gwenllian verch Gruffydd