mai ar enw y Gronwy uchod y galwyd yr hen blas Gronwy, ac efallai fod y mab Gronwy, am ryw yspaid, yn benaeth y sefydliad a gyfodasai ei dad.
Rhos-gad. Yr ystyr yw, Maes-y-frwydr.
Plas Brain.—Yn briodol, "Plas Bran;" enw ar ddyn oedd Bran, ac yn Llanddyfnan ceir esgobaeth Bran.
PLWYF LLANFAIRMATHAFARNEITHAF.
Y mae y plwyf hwn yn sefyll oddeutu naw milldir i'r gogledd-orllewin o Beaumaris. Dywed W. Jones, Ysw., yn y "Gwyneddon," am 1832, fel y canlyn:-Llan Fair Mathafarn Eithaf, i.e., St. Mary's of the Hospitium, (or house of entertainment at the extremity), is situated in the common of Tindaethwy, and hundred of Rhosir— a chapel not in charge to the rectory of Llan Ddyfnan, and dedicated to St. Mary. The resident population in 1801 was 453. At a place called Rhos-fawr, on the side of the said common, the celebrated Welsh bard-the Rev. Goronwy Owen, was born in 1822; he was educated at the Free School at Bangor, and sent to Jesus' College, Oxford. Dr. Edward Wynn, of Bodewryd, Chancellor of Hereford, defrayed the expense of his education, and has the merit of having brought this prodigy to light. Goronwy Owen, having been neglected at home, and struggling with difficulties, was tempted to expatriate himself, after singing so sweetly in praise of his native soil, and go to Williamsbugh, in America. The yearly value of this curacy, according to the diocesan report in 1809, was £65.
There is a cromlech at Marian Pant y Saer, Rhosfawr; in the churchyard is a modern carnedd, or a rude heap of stones, erected by Mr. Wynn, which has been on some years the place of interment for the family.
