The grooms parents are divorced and the father is very controlling. With that, at the previous marriage of the grooms brother and sister in-law the father was very upset that he had to sit in the same pew as the ex-wife. So upset that he stood in the back of the church on the brides side. We are trying to be open minded to everyones feelings, though we can't make everyone happy. We were told by the grooms stepmother that his father would really appricate being asked "where he would like to sit" on the day of the ceremony. Here is the catch, the grooms mother paid of the ceremony at the church and knowing how controlling the father is, he is going to want to sit in front of her. What should we do? What is the proper etiquette in this case and how should the parents come down the isle? Who should be first, second... and who should sit where?