This research addresses the glass ware (ten beads, five fragments of vessels, two presumably window pane shards) discovered in 2015, 2017, and 2022 by the researchers at the church located in the fortified settlement of Markula (the Republic of Abkhazia). The study was conducted by the team of the Institute of Archaeology of the Russian Academy of Sciences headed by one of this paper’s authors. The chemical composition test of glass objects has been conducted to determine their origins and chronology. X-ray photography and scanning electron microscopy were made at the Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, and laser ablation inductively coupled plasma mass spectrometry was performed using scientific equipment of the Collective Use Centre at the Research Chemical-Analytical Centre of the National Research Centre “Kurchatov Institute.” The analyses obtained have been interpreted according to Shchapova and Stawiarska’s methods, with the amendments suggested by one of the authors, as well as the Western classification of the Roman and Early Byzantine natron glass ware.