I wish I had come up with my idea for the Faramir/Eowyn one in time to claim my number, but I didn't think about the blue mantle until today!

I'm so glad you like it.

The other two couples are actually in Appendix A. Valacar was a King of Gondor-- by marrying a woman of a different people, he started the Kin-strife. And Arathorn/Gilraen are Aragorn's parents.