John Roberts a'i westeion yn nodi 500 mlynedd ers 95 Datganiad Martin Luther. John Roberts and guests mark 500 years since Martin Luther's 95 Theses. Show more
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John Roberts a'i westeion yn nodi 500 mlynedd ers 95 Datganiad Martin Luther. John Roberts and guests mark 500 years since Martin Luther's 95 Theses. Show more