A change in contract-holder identity can happen for several reasons, including the death of the contract-holder and a family member taking over occupation as a successor.
Newid o ran pwy yw deiliad y contract – gall hyn ddigwydd am sawl rheswm, gan gynnwys marwolaeth deiliad y contract ac aelod o’r teulu yn cymryd dros feddiannaeth o’r annedd fel olynydd.