Holl rieni/ All parents 14.12.2020 Gweler y llythyr sydd wedi atodi. Hoffwn gadarnhau nad oes unrhyw gyswllt rhwng y ddau achos. Please see attached letter. I would like to emphasise that both cases are unrelated . Llythyr-ysgol-gyfan-Whole-school-letter-14.12.20.docx