I think you'll have to clarify a little. Pretty please.
D'Hara's PM is married to FR's GG (Governor General).
Honestly, though, I find FR's ruler to be rather awkward. If I ever set up puppet states, I'll have them have GGs as my lieutenants. As, you know, the british monarchy does in the Commonwealth (for example, Canada has both a Prime Minister and a Governor General, whereas, to my knowledge, Britain does not have a GG, but only the queen).
Both rulers are elected government officials, though, and not monarchs. Any offpsring will therefore be very well off, but not a heir.