Hello, i am not legally married quite yet, but i have a question that i thought you might be able to help me with.

I am having a small family wedding in a bit over 2 months. My aunt lives a few miles away and i know she would like to be there with her wife. The thing is she has 3 grandkids that she has full custody of (ages 6,10,and 13) They all have behavior issues, the 2 younger ones are the worst. I love them all, but i can not deal with the behavior, especially on the big day. I do not know how to invite her, but not the kids. My 2 will be there (2 and 5) along with my 2 neices and little brother (11,13 and 13). So i can not say it is to be no kids allowed. What should i do? I really do not want to upset her by not inviting her at all. Give me some advice please.