ABSTRACT This study presents multidisciplinary analyses conducted in Bagicz, Poland, focusing on one of the most famous archaeological finds from the Roman Iron Age—a burial in a wooden log coffin belonging to the so‐called “Princess of Bagicz.” This female skeleton, which fell from a cliff in 1898, has been the subject of over a century of research. Using interdisciplinary methods, including dendrochronology, isotopic analysis and archaeological assessment, this study provides new insights into the life, diet and burial practices of the individual. Three different methods—archaeological dating, radiocarbon analysis and dendrochronology—were employed to establish a more precise chronology.