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o ganlyniad i hynny yr oedd galw am ddegau o filoedd o dai newydd , y codwyd llawer ohonynt gan dirfeddianwyr mawr fel ardalyddion bute ac arglwyddi tredegar
that caused a demand for tens of thousands of new houses , many of which were built by great landowners such as the marquises of bute and the lords of tredegar