He bore the title of Ichirgu-boil and was most likely the commander of the state capital Preslav's garrison.The tombstone was discovered in 1952 by Professor Stancho Vaklinov and is preserved in the National Archaeological Museum.The inscription is Mostich's epitaph, indicating that he was buried in the church: his remains were also found, revealing that he was relatively short (165–170 cm).The text is notable for being one of the earliest sources mentioning the title "Цѣсарь"[2] ("Tsesar"[3]).It reads as follows: сьде лежитъ мо- стичь чрьгоубъɪ- ля бъɪвъɪи при сумеонѣ ц︢ри и при петрѣ ц︢ри ос(м)иѭ же десѧ- ть лѣтъ съɪ оста- вивъ чрьгоубъɪлъ- ство ї вьсе їмѣн- иѥ бъɪстъ чрьнори- зьць ї въ томь съ-