Complex sentence: Krasnokholmsky District, with the administrative center in Krasny Kholm, was established within Bezhetsk Okrug of Moscow Oblast on the territories which previously belonged to Bezhetsky and Vesyegonsky Uyezds.
Split into simpler sentences: Krasnokholmsky District, with the administrative center in Krasny Kholm, was established within Bezhetsk Okrug of Moscow Oblast. It was established on the areas which previously belonged to Bezhetsky and Vesyegonsky Uyezds.