Complex sentence: In the mid- 14th century, the town was overshadowed by the neighbouring Nizhny Novgorod but continued as the third largest town of Nizhegorod Principality until 1408, when Edigu razed it to the ground.
Split into simpler sentences: In the mid- 14th century, the town was overshadowed by the neighbouring Nizhny Novgorod. Gorodets continued as the third largest town of Nizhegorod Principality until 1408, when Edigu razed it to the ground.