Konstanty Ireneusz Łubieński

Konstanty Ireneusz Łubieński, Pomian coat of arms (19 February 1825 – 16 June 1869) was a Roman Catholic bishop of the Diocese of Sejny or Augustów.

Biography Łubieński was born in Warsaw. He was the son of Henryk Łubieński, the vice-president of Bank Polski, and Irena Łubieński . After homeschooling and completing a philosophy course in Fribourg, he entered the diocesan seminary of the Diocese of Kielce in 1846. On 5 August 1846, he was given a tonsure and ordained to the minor orders of porter and lector by Tadeusz Łubieński. In 1847, he began attending the seminary at the Church of the Holy Cross in Warsaw; there, he was ordained to the subdiaconate on 20 May 1849 and to the diaconate on 2 August 1849. He was ordained a priest at the Church of the Holy Cross on 15 July 1849 by Tadeusz Łubieński. After his ordination and brief arrest, Łubieński was appointed vicar of the Church of the Holy Cross, as well as its seminary. He served as its vicar until 1850, when he was appointed vicar and administrator for the parish of Wiskitki.

As bishop of Sejny or Augustów, Łubieński reformed the diocesan seminary and organized the diocese into 11 diaconates. In the years following the January Uprising, he released an encyclical defending the Catholic Church against the Tsarist government on 19 October 1867. He was arrested and was deported to the interior of Russia on 31 May 1869. He died on 16 June 1869 in prison in Nizhny Novgorod.