Complex sentence: In 1639, he succeeded his father as Lord Aston of Forfar in the peerage of Scotland, and, in 1660, at the death of his maternal uncle Ralph Sadleir, he inherited the lordship of Standon and other estates in Hertfordshire, England.
Split into simpler sentences: In 1639, he succeeded his father as Lord Aston of Forfar in the peerage of Scotland. And, in 1660, at the death of his maternal uncle Ralph Sadleir, he inherited the lordship of Standon and other estates in Hertfordshire, England.