My OH and I like the name of his dads mum (i.e. OHs grandma) if we have a little girl. I never met her and genuinely just like the name but for OH he likes the connection.
OHs parents split up when he was young, despite agreeing to not tell names he told his mum and she said she doesn't like the name but OH said it is because his mum says his grandma wasn't very nice to her following the split, obviously OH saw none of this and he just has lovely memories of her. Plus his mum has a tendency to overreact.
Would we be unfair if we used the name? Surely she won't not love baby as much just because of the name and she will get over it.