Here you could place your text on the special occasion that is to be celebrated.
It could be the bride and grooms biographies to give your invited guests a bit of background to start your page off nicely. Telling your audience when and where you met, how long you have been together and the fun times you have had along the way.
Then add in where the proposal took place, maybe add a picture of the ring and then onto the other important information regarding your big day.