I know I am deep in grief and anger stages right now so maybe not thinking straight.
I know that my mum would not have wanted her two Great grandchildren to be upset (they are 3 and 6)/attend her funeral, so I politely asked the mum of the children (nephew's partner) if she could veto the service and bring them straight to the wake as these are the wishes of my Dad and I truly believe the wishes of my late mum. She is still insisting on bringing them and has also caused a rift between us and nephew at a time when we should be pulling together. Her excuse is lack of childcare, although her mum and dad are heavily involved with the children.
As an aside, selfishly I don't want toddlers interrupting my final goodbye to my Mum.
Please help.