 Complete the following phrase:  Other evidence supports Nenniuss claim that a leader came to north Wales and brought the region a measure of stability, although an Irish Gaelic element remained until the mid-5th century. Cuneddas heir Einion Yrth ap Cunedda defeated the remaining Gaelic Irish on Anglesey by 470, while his son, Cadwallon Lawhir ap Einion, appears to have consolidated the realm during the time of relative peace following the 