Board Thread:Skyrim/@comment-12760152-20130723093333/@comment-10207438-20130903184438

Spiegel1 wrote:

Olfrid himself makes it clear that the only reason this rivalry even exists is because his family's more well-to-do than the Gray-Manes.

It's a petty reason for a petty squabble. That's about all I can say about it. and on the other Biased side, The Gray-manes don't like the Battle-borns because they see them as giving up their honor for financial gain. to them it's not about the battle-born having more money, it's about what they do for that money.