Original sentence: The Ashikaga had been forced to move to Kyoto, abandoning Kamakura and the Kantō province, because of the continuing difficulties they had keeping the Emperor and the loyalists under control (see the article Nanboku-chō period)
Edited sentence: The Ashikaga had been forced to move to Kyoto, abandoning Kamakura and the Kantō region, because of the continuing difficulties they had keeping the Emperor and the loyalists under control (see the article Nanboku-chō period)