Complex sentence: Tudhoe was renowned as a mining village up until the end of the 20th Century, the Colliery Masters always held residence in The Loggins, a large manor house, up until the mines were closed.
Split into simpler sentences: Tudhoe was renowned as a mining village up until the end of the 20th Century. The Colliery Masters always held residence in a large house known as The Loggins, up until the mines were closed.