As we care for our historic assets, we may need to make changes to them, but we need to do so in a way that protects their special qualities.
Wrth i ni ofalu am ein hasedau hanesyddol, hwyrach y bydd angen i ni wneud newidiadau iddyn nhw, ond mae’n rhaid i ni eu gwneud mewn modd sy’n gwarchod eu nodweddion arbennig.