Bruno called also BONIFACE, apostle of the Prussians, by extraction a Saxon nobleman, was born 970, and was called by the Emperor Otho III to his court, and appointed his chaplain about 990. Romualdus the monk (founder of the Camaldules) came to court, and Bruno, at his own request, was admitted into his order, and departed with him (A.D. 1000). Having spent some time at Monte Cassino, and at Piraeum, near Ravenna, he was sent forth to preach to the infidels, and the pope made him "Archbishop of the Heathen." He labored incessantly, exposed to every peril and privation, among the Poles and Prussians; but, after meeting with some success and converting a prince of the country, he was martyred, together with eighteen companions, in 1009. He is mentioned in the Roman Martyrology on the 15th Oct., and again as St. Boniface on the 19th June. See his life in Mabillon, Saec. Bened. 6, 79. — Pertz, Monum. Germ. 6, 577 sq.; Butler, Lives of Saints, June 19, 2:600; Mosheim, Ch. Hist. 2, 139; Voigt, Geschichte Preussens, 1, 280 sq.