Bishops of Samogitia, Samogitian diocese (now a part of Lithuania) from 1417 to 1926.
The seat of the diocese was in Varniai/Medininkai until 1864, when it was moved to Kaunas. It was liquidated in 1926 by Pope Pius XI when the archdiocese of Kaunas was created.
References
Bishop of Samogitia Wikipedia(Text) CC BY-SA