The House of Kilborne was an ancient Cynaran family which founded the city-state of Redmark under Margrave Hrothgar Kilborne.
The noble Kilbourne family, which originally hailed from the Island of Cynara, migrated far to the east after the disastrous Forty-years war, and the subsequent fall of the Kingdom of Urland.
After founding the settlement of Redmark, the Kilbournes continued to govern the growing city and its surrounding territory for many centuries. During that time, Redmark grew from a small mining and agricultural settlement into a thriving and wealthy metropolis.
During the early years of the Fifth Age, the Wars of Destiny engulfed the entire region. At that time, Redmark was ruled by Margrave Artemis Kilborne, who defeated Erin Fremantle at the Battle of Darkwood, and was therefore able to preserve the independence of his city.
At the conclusion of that conflict, King Erin appointed Artemis "Margrave of Redmark," a title the family continued to carry for many years.
House Kilborne continued to rule the city of Redmark until the War of Succession; when their last Lord; Margrave Hayden Kilborne, was betrayed and murdered by King Eldred Orsini, extinguishing the line forever.
Eldred then installed the terribly corrupt House of Brevoy in their place, and dark times came to the city of Redmark.