Cydifor, Lord of Caerphilly.
Einudd, m. Morfudd ferch Odwyn abt. 950 from the line of Ceredig ap Cunedda (see Usai ap Ceredig ap Cunedda).
Morfudd, mother of Gwaithfoed of Ceredigion, but given as wife of Cloddien ap Gwrydr Hir.
Gwaithfoed Vawr, of Gwent; Prince of Cardiganshire, Lord of Cibwyr & Caredigion, married Lady Morfudd ferch Ynyr ap Meurig ap Ynyr Gwent.   Gwaithfoed Note
    * Aeddan (Aydan) of Grosmont, m. Nun ferch Sir John Russel of Kent Church
    * Y Bach, of Ynysgynwraidd (Skenfrith)
    * Gwyn Anwy of Castell Gwyn & Trewyn (Whitecalste & Wynston)
    * Cedryck Gwilyn.
    * Cydifor, (per Welsh Genealogies)
    * Ednywain, (lay Abbot of Llanbadarn Fawr, living in 1188) (per Welsh Genealogies)

"Welsh genealogies has the Mathew direct line from Aeddan ap Gwaithfoed Vawr, but other sources places the
direct line from Cedryck ap Gwaithfoed Vawr, then Aeddan ap Cedryck.
"The Genealogies of Glamorgan" by George T. Clark dated 1886 states Gwaethfoed Fawr line as; Aydan ap
Gwaethfoed,  Gwilim ap Aydan, Sitsylt ap Gwilim, Jevan ap Sitsylt.

The Mathew line continues from:

Cedryck (Lord of Gwynfai and of Cardigan), who received as a gift from Fitz Hamon the Castle and Lordship of
Ruthyn. Arms of Cedrych - Sable a lion rampany regardant argent, langued and armes gules.
The children of Cedryck were:
    * Aeddan, next
    * Meuric, this is the Edward Lewis of Van line.
Aeddan, born abt. 1075,  lst Lord of Grosmont Castle, Monmouth in Gwarthstello, married Anne Russell, daughter of Sir John Russell of Kentchurch.  Aeddan who was a powerful Cheiftain of Gwent who flourished in the reign of Henry II, took the cross from Archbishop Baldwin when in 1187 he preached the Crusade at Llandaff. Arms added by Aeddan to the ancestral coat - or a Saltire Argent. Arms of Anne Russell - Argent, on a bend sable, three swans close argent, beaked & C. Gules.
    *  Gwilym, (next) Settled in Glamorgan
    *  Meurig ap Gwas Teilo
    *  Cynhaethwy, Setttled in Glamorgan
    *  Cynan Osglog
    *  Hywel
Gwilym, born 1125 was Lord of Gwent, married Gwenllian ferch Hywel of Caerleon of the line of Rhydd ap Iestyn,
born 1129 in Caerleon, Monmouth, England.
    * Llywarch
    * Gwenllian, married Walter Winter
    * Seisyllt, the eldest son, born abt. 1150 in Glamorgan, Wales (some sources including "The Genealogies Of                 
       Glamorgan" state Seisyllt is next in line in the Mathew genealogy but, Welsh Genealogies state Ieuan)
    * Ieuan, (next), born abt. 1155 in Ystrad, Glamorgan, Wales
Ieuan, born 1155 in Ystrad, Glamorgan, Wales, was Knight of the Holy Sepulchre, married Anne ferch Meuric ap
Meredith of Ystrad.
Meuric, born 1200 in Ystrad, Glamorgan, Wales, married Eva ferch Ythel Gam ap Meredith who was born 1204 also in Ystrad. They had at least two sons;
    *  Ievan, (next)
    *  Gwlhaved, born 1227.
Ieuan, born 1225 in Ystrad married Cecil Clark, born 1229 in Llandewi, Glamorgan, daughter and heir of Sir Robert
Clark.
Caradoc, born 1250 in Llandewi, Glamorgan, Wales, married Alice Welsh, born abt. 1254 in Llandwei, daughter of Sir John Welsh.