(b) if later, the day on which the landlord (or in the case of joint landlords, any one of them) becomes aware that the identity of the contract-holder has changed.
Os bydd amrywiad o'r fath yn digwydd o fewn dwy flynedd i farwolaeth yr unigolyn, yna ystyrir mai'r dyddiad caffael fydd y dyddiad etifeddu'n unol â'r amrywiad.