Complex sentence: Kay-Shuttleworth was heir to a large estate just north of Manchester centred around Gawthorpe Hall in Lancashire, which he inherited in 1872 upon the death of his mother.
Split into simpler sentences: Kay-Shuttleworth was heir to large estates, one of which was in Lancashire just north of Manchester centred around Gawthorpe Hall. He inherited all this in 1872 upon the death of his mother.