In his famous Annals, the 15th-century chronicler Jan Długosz provided a wealth of information on the way of life of the Lithuanians in pagan times, as well as in the period immediately following their conversion in 1387. In drawing attention to the consumption of material goods such as food, clothing and shelter, Długosz portrayed the pagan Lithuanians as a people who could not satisfy even their most basic material needs. After their conversion to Christianity, their faith nevertheless wavered for a long time, and so their needs were only met thanks to the help of the Polish king, Władysław II Jogaila (Jagiełło), whom the chronicler held up as the ‘apostle’ of Lithuania. Długosz’s description of the way of life of the Lithuanians is rich in theological themes, based on the Gospels and the writings of the Prophets. The author examines the reliability of Długosz’s account on the way of life of both pagan and converted Lithuanians.