Longstride is the central region of Ulsinor. It is the seat of government and reputedly the most wealthy and cultured human province.
The region is named after the Longstride Keep, a vast fortification which spans the tumultuous waters of the great river Sureheart, which flows through the heart of human dominions, ending in the vast inland sea; Heart’s End. Though the keep has often been besieged it has never been taken by a hostile force. The nearest that any army has come to breaching its walls was the Abyssal Army of the demon-warrior Satsugai in 2200AR, though even this force was unable to take the central keep. (see The Black Siege)
Longstride is ruled over by the Empress of Ulsinor, but all of the Ulsine provinces have a strong presence in the area.