Serendipity language was by Horace Walpole in 1754. In a letter he wrote to his friend Horace Mann, Walpole explained an unexpected discovery he had made about a (lost) painting of Bianca Cappello by Giorgio Vasari by reference to a Persian fairy tale, "The Three Princes of Serendip". The princes, he told his correspondent, were "always making discoveries, by accidents and sagacity, of things which they were not in quest of". The name comes from "Serendip", an old name for Sri Lanka (Ceylon), hence "Sarandib" by Arab traders. It is derived from the Sanskrit "Siṃhaladvīpaḥ" (Siṃhalaḥ, Sri Lanka + dvīpaḥ, island).
Baron Walpole for Robert Walpole, son of Sir Robert Walpole in honour of and during the lifetime of his father, the "de facto" first Prime Minister of Great Britain, with special remainder, failing male issue, to his brothers Edward Walpole and Horace Walpole, in default of this then to the heirs male of his father, and in default of this then to the heirs male of his grandfather Sir Thomas Walpole. On Sir Robert Walpole's retirement from the House of Commons in 1742, he received the titles, Baron Walpole of Houghton in the County of Norfolk, Viscount Walpole and Earl of Orford,