The first biography in over a century of Adrian IV, the only English pope in the history of the Catholic Church. Nicholas Breakspear has been overlooked for centuries, even though his achievements outshone those of his contemporary, the martyr Thomas Becket. Born in poverty and probably illegitimate, Breakspear rose to become the only Englishman to ascend the throne of Saint Peter, ruling over the papal states as Adrian IV. His life is not a tale of liturgy or sermons, and there are more cannons than canons, as Breakspear faced fighting in Scandinavia and the Second Crusade in Spain. He was immediately thrust into conflicts upon his election as pope in 1154. First, he had to overcome the rebellious republicans of Rome before defending his Church against armed threats from the Norman King William of Sicily, the Byzantine Emperor Comnenus and finally the German King Frederick Barbossa, intent on restoring the former glories of the Holy Roman Empire. Breakspear saved his Church from German domination, but his legacy is contested. There was a papal schism on his death, while many blame him for allowing Henry II's subjugation of Ireland in 1171. For the first time in over 100 years, R. A. J. Waddingham returns to the evidence in chronicles and medieval manuscripts to tell the whole story of Breakspear's remarkable journey through twelfth-century Europe. AUTHOR: R. A. J. Waddingham is a retired consulting actuary and an Honorary Fellow of Royal Holloway, University of London. He was awarded a CBE in the Birthday Honours of 2012 for services to pensions. In 2019 he completed a Graduate Certificate in Historical Research, with merit, at Birkbeck, University of London. 12 colour illustrations