Complex sentence: But in 1719, the Edo government ordered a part of Konyachō's residents to move to the north of Kitanorimonochō for disaster prevention, since which both portions adjacent to Kitanorimonochō have been called Konyachō.
Split into simpler sentences: But in 1719, the Edo government ordered a part of Konyachō's residents to move to the north of Kitanorimonochō for disaster prevention. Since then, both portions adjacent to Kitanorimonochō have been called Konyachō.