A wedding ceremony is supposed to be a time of joy and celebration. Many, however, find it an occasion to bring up old grievances or new kidnappings. Yes, weddings can be rough in several ways, but the worst is when the ceremony becomes interrupted by a conflict of characters.
Many types of conflict can occur at a wedding, some only happen at the wedding itself, like when the guards prevent the hero from reaching the bride to make their Speak Now or Forever Hold Your Peace line. Other common reasons for a fight are Feuding Families that get provoked during the ceremony.
The final result may vary. The wedding may have a happy ending anyway, it may be cancelled for the time being and resumed later (for example, if the bride is kidnapped), or it may even result in the bride or the groom giving up the whole thing.
Sub-Trope to Ballroom Blitz, where any party gets interrupted by a fight. Sister Trope to The "Fun" in "Funeral", another sacred occasion liable to being ruined by hijinks.
