In the World of Sky, a Highlord is a very prestigious honorary title, ranking even above a Duke, usually reserved for the leader of an important military organization. For instance, Alexandros Mograine, Highlord of the Order of the Silver Hand.
Another example is Anduin Losa, who also served as a Highlord when he led the Storm Reclamation Army.
It must be said, the title does carry a significant value, yet when compared to a Duke of Protection, a Highlord still falls short.
If you're going to poach, you might as well make it a generous offer.
Mo Fei did not respond but instead countered, "Are you sure you want to give up on the Kingdom of Altland? This is the Perinod family's legacy for over a thousand years, are you really going to sell it just like that?"
Unbeatable Fool (King of The South Seas): "This is just a game, don't take it too seriously."