User blog comment:Kassyndra/Time for SHIPPINGS/@comment-5038450-20130924154825/@comment-3974211-20130926215853

Jarvan and Shyvana were popular on the lore forums to the extent Jarvan's lore was re-written multiple times to better capture their relationship. Jarvan is basically Shyvana's knight in shining armor (also literally).

When Quinn came out, some of the Rioter's said she had the thing for Jarvan and the lore forums literally exploded with Team Jarvanna - and then Rioters appeared on both sides of the fence.

I personally don't see where Fiora even comes in. Aside from being Demacian, they've not interacted.