Board Thread:Show-Related Questions and Answers/@comment-1758442-20130915084147/@comment-5305135-20130921211850

Yes, because Cora accepted Leopold's hand in marriage on Regina's behalf. He did not consult Regina on whether she was happy. Snow was confident that her Father would allow Regina out of the engagement if he knew her heart belonged to another, and he may well have because he was a benevolent King, but he still assumed she was okay. She was a 'victim' and never wanted to be in the marriage, so it wasn't consensual.

Engagements in royal circles were often done through parents and it was a great honour to marry the King so Leopold probably could plead ignorance. Yes I'd say he raped her. BUT, I doubt this will ever be covered in the show.