On his return to England in 1763, he died of fever in Madrid, unmarried and childless and was buried in Westminster Abbey two months later. His father died only a year later and the titles became extinct.
Upon his return to England in 1763, he succumbed to fever in Madrid, remaining unmarried and without offspring, and was interred in Westminster Abbey two months subsequently. His father passed away only a year later, resulting in the extinction of the titles.