Peter [de] Thellusson (27 June 1735 — 21 July 1797)[1] was a Genevan businessman and banker who settled in London, and became a British subject in 1762.
His descendants built the new Brodsworth Hall in South Yorkshire, which is maintained by English Heritage.
[4] His father had started a bank in Geneva (Thellusson, Necker et Cie) and became the Genevan ambassador to Paris.
Peter started his own finance house in Philpot Lane and in 1761 took British nationality by Act of Parliament.
As a result of the case, legislation, commonly known as the Thellusson Act, was passed to prevent a recurrence of such problems in the future.