Polidori Plasden (London, Uingereza, 1563 – London, 10 Desemba 1591) alikuwa Mkristo wa Kanisa la Anglikana kabla hajajiunga na Kanisa Katoliki. Baada ya kuhamia Ulaya bara, aliingia seminari kwa lengo la kurudi kwao kufanya uchungaji usioruhusiwa na serikali, akapewa daraja ya upadri huko Roma (1586). Hapo alirudi Uingereza lakini baada ya miaka mitatu aliuawa kwa kunyongwa na kukatwa vipandevipande chini ya sheria. Papa Paulo VI tarehe 25 Oktoba 1970 alimtangaza kuwa mtakatifu mfiadini pamoja na wenzake 39. Sikukuu yake ni tarehe ya kifodini chake. Watakatifu wa Agano la Kale Orodha ya Watakatifu Wakristo Orodha ya Watakatifu wa Afrika Orodha ya Watakatifu Wafransisko Martyrologium Romanum Bishop Challoner, Memoirs of Missionary Priests and other Catholics of both sexes that have suffered death in England on religious accounts from the year 1577 to 1684 (Manchester 1803) "Decree Of The Sacred Congregation Of Rites, On The Introduction Of The Cause of Beatification or Declaration of Martyrdom, of Two Hundred And Sixty-One Venerable Servants Of God, Who Were Put To Death In England For The Faith" Howell, David.