Should I invite the whole family?

If all goes well, I’m going to be married in a few years. There’s some resentment in the family between my dad and my aunt, my mum and my cousin’s wife, where my aunt and cousin’s wife behaved badly. I’m wondering if I just shouldn’t invite certain relatives, or if that would be rude? They didn’t invite us to their weddings. My other cousin has tried to be the peacemaker and like me, wishes we could all get along. I’m stuck between a rock and a hard place. Loyalty to my parents, versus offending other relatives. What should I do?

Should I invite the whole family?
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