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CEREDIGION & SEISYLLWG KINGDOMS

The eponymous founder of Ceredigion was [CERE131] Ceredig, see GWYNEDD KINGDOM (1).

[SEIS251] Seisyll (ap [SEIS241] Clydog) was King of Ceredigion; then 1st King of Seisyllwg when Ceredigion was united with Ystrad Tywi (c.760's).

[SEIS261] Arthgen (ap Seisyll) was King of Ceredigion & Seisyllwg. He died 807.

[SEIS271] Dyfnwallon (ap Arthgen) was King of Ceredigion (807-).

[SEIS281] Meurig (ap Dyfnwallon) was King of Ceredigion (c.850's).

[SEIS292] Angharad (ferch Meurig) married [GWYN289] Rhodri mawr (ap Merfyn frych, see GWYNEDD KINGDOM (1).