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O Drefeglwys i Sardinia
Dylan Iorwerth sy'n ymweld 芒 phentre' bychan yn Yr Eidal ar gyfer agor amgueddfa i goffau Benjamin Piercy. Dylan Iorwerth finds out why a Welsh engineer made history in Sardinia.
Darllediad diwethaf
Llun 1 Ebr 2024
22:30