Phillimore 1887:89 – his son's pedigree is given as: Howel. M. Crada6c. M. meircha6n. M. Howel. M. Runya6n. M. Einya6n. M. Idwm. M. Cadwall. M. meic. M. Ewein. M. Cenlas. M. Ewein danwyn. M. Einya6n yrth. M. Cuneda Wledic. Phillimore, Egerton, ed. (1887), "Pedigrees from Jesus College MS. 20", Y Cymmrodor, vol. VIII, Honourable Society of Cymmrodorion, pp. 77–92
bbc.co.uk
"Welsh naming". BBC Wales. Retrieved 5 July 2024. "ap" is a contraction of the Welsh word "mab", which means son