The battle at the old cemetery, an episode of “Raid by Colonel Karyagin”, when about 500 Russians fought about 15 or 20,000 Persians. Many articles about this episode from the Russian-Persian war of 1804 - 13 are walking around the web. But I recommend reading about this raid from the original source - regimental regimental history. https://runivers.ru/bookreader/book58106/#page/276/mode/1up Also read the blog details.