Antoni Julian Nowowiejski was born on 11 February 1858[1] in Lubienia near Opatów. At sixteen he entered the diocesan seminary at studied Płock. He received Holy Orders on July 10, 1881.[2] The following year he obtained a degree in theology from the Academy of Saint Petersburg. Nowowiejski became a professor and a rector of the Płock Seminary, canon of Płock and in 1902 vicar general of the Płock diocese. He was ordained bishop of Płock on 6 December 1908.
As the leader of the Płock diocese he carried out an administrative reform, devoting much attention to catholic education and created a junior seminary.[3] During the First World War, he was active in charity organizations. He oversaw two diocesans (synods) in 1927 and 1938, and initiated a local chapter of "Akcja Katolicka" (Catholic Action). In November 1930, he became the titular archbishop of Silyum.[4]
On 1 September 1939, the German invasion of Poland marked the beginning of the Second World War. One of the Nazis' goals was the elimination of Polish intelligentsia. on 28 February 1940, Bishop Nowowiejski and Płock's suffragan bishopLeon Wetmański were arrested by the Germans and imprisoned in Słuck and Działdowo.[1] He refused the chance to escape, saying, "How can a pastor abandon their sheep?"[4] Archbishop Nowowiejski was tortured when he refused to trample on his pectoral cross.[6] Although suffering, he imparted his blessing to the tortured and dying. After three months of torture and hunger, he died, at the age of eighty-three, at the Dzialdowo death camp on 28 May 1941.[4] The place of burial of his body is unknown, but it is supposed that it was a forest in Malinowo.[5]
Antoni Julian Nowowiejski was the author of many works in the realm of history (especially the history of Płock) and Catholic liturgy. His Cereminiał parafialny (Parish ceremony) became a standard textbook for parish priests, and went through seven editions before the war.