Complex sentence: Following his death in 1915 Colonel Blandy-Jenkins's wife kept the house until 1953, after which it was bought by Sir George Williams CBE MC, of the Williams family of Aberpergwm.
Split into simpler sentences: Following his death in 1915 Colonel Blandy-Jenkins's wife kept the house until 1953. Where it was then brought by Sir George Williams CBE MC, of the Williams family of Aberpergwm.