Complex sentence: The barony of 1778 became extinct on his death, while he was succeeded in the barony of 1792 according to the special remainder by his nephew Edward, who was the eldest son of the first baron's brother, Right Reverend Thomas Thurlow, Bishop of Durham.
Split into simpler sentences: The barony of 1778 became extinct on his death, while he was succeeded in the barony of 1792 according to the special remainder by his nephew Edward. He was the eldest son of the Right Reverend Thomas Thurlow, Bishop of Durham.