Board Thread:Spoilers!/@comment-25375217-20170815201511/@comment-25926288-20171010172656

Could it be that the unknown Prince WhichShallNotBeNamed is the brother to Prince Marius of GenericNondescriptKingdom?

Probably a little before (with Eudora), then a little more present with Prince Marius (unless something happens in 7x03 that changes this).