My fiancee was talking to his mom a week or so ago and she was saying how everybody is excited to come. Among those excited are his uncles grown kids that are only related to my fiancee through marriage and they aren't even invited! I have never even heard of them before let alone met them. Now my finacee insists that we have to invite them just because they know about our wedding and their names came up in conversation. I don't want to invite more people than we actually have too. Do we have to invite them just because they know?