On the death of his cousin, George Boscawen on 29 August 1852, he succeeded to the title of Viscount and to the family seat of the Boscawens at Tregothnan.
He succeeded to the title of Viscount and to the family seat of the Boscawens at Tregothnan. This was on the death of his cousin August 1852. George Boscawen on 29 was his cousin.