Complex sentence: He was succeeded in the baronetcy by his son Brian Hubert who rose to become a general in the British Army and was raised to the peerage as Baron Robertson of Oakridge in 1961.
Split into simpler sentences: He was succeeded in the baronetcy by his son Brian Hubert. The latter rose to become a general in the Army and was raised to the peerage as Baron Robertson of Oakridge in 1961.