A central place was not established because most lands were used as manors thereafter, but in the Sengoku period (period of Warring States), Mitsuhide AKECHI who was ordered to territorialize Tanba defeated Nobufusa SHIOMI, and established the modern-style Fukuchiyama-jo Castle (福智山城, later written as 福知山城) after repairing the Yokoyama-jo Castle which was the castle where Shiomi dwelled.
それ以降は土地のほとんどが荘園として利用されたため主だった中心地はなかったが、戦国時代(日本)になると丹波平定の命を受けた明智光秀が塩見信房を倒し、その居城であった横山城を大修築し近世型の福智山城（後の福知山城）とした。