Where would my future MIL sit in church and who would escort her if she is not remarried and does not get along with my future FIL and his wife? My fiance has one older brother who will probably be the officiant at our wedding, would he walk in with his mom so that she doesn't walk in by herself? I don't think she has any brothers, only sisters. I wouldn't want to sit her in the same pew with future FIL and his wife if they don't get along.