My dm has been Nannie since ds was born.
Mil has recently become involved in our lives again and when we asked what she wanted to be called she said Nannie and we said yes as we didn't think the 2 nannies would ever meet etc.
Anyway am expecting dc2 and my dm will be staying for a while and so will likely meet mil.
Will this be a problem do you think? Can you have 2 grandparents called the same thing?