History

If you thought the medieval diocese of Lincoln was big, spare a thought for the early modern diocese of Vilnius, which covered the whole shaded area (nearly the entire Grand Duchy of Lithuania - about half of present-day Lithuania, with the whole of Belarus and bits of Russia) pic.twitter.com/XuJAm1Ebf1

— Dr Francis Young (@DrFrancisYoung) January 10, 2024