So Aden Sank to Grief
Boveney-Brill is the easternmost of the Northern Marches, and part of the Uskland. It is bordered on the west by Boveney-Cemais, on the south by Clune, on the east by Boveney Bay and the Eastern Sea, and on the north by wilderness. It is ruled by Marcher Lords from House Glenfair from Castle Bridgend. The current Marcher Lord is Lady Nerys.
A slight majority of the population are Halfling, and the remainder are mostly Human. Most Halflings and many Humans identify as Usklanders. Usklandish is the common tongue of the march, though Adenian remains the official language of government and law, and is often heard in Brill.
Boveney-Brill is mostly agrarian, with little infrastructure. Due to the lack of well-maintained roads, river transport is extremely important to local trade. The Mersey links the march with the rest of the Uskland, and the port at Brill links to the rest of the Empire.