Naming public places may be nearly cost free and plaques cost a few hundred pounds but monuments and their installation may range from £10,000 to £500,000 or more.
Mae’n bosibl na fydd enwi mannau cyhoeddus yn costio fawr ddim ac mae placiau’n costio ychydig gannoedd o bunnoedd ond gall cost cofebion a’r gwaith o’u gosod amrywio o £10,000 i £500,000 neu fwy.