EN
The author analyses the place of Gaius in the research of Teodor Dydyński – a Polish law historian. Gaius, though not well known, became a famous Roman jurist, recognized as a great authority. His Institutiones was a complete exposition of the elements of Roman law. Dydyński thought that Gaius and his works were significant so he devoted much research to him. Dydyński translated Institutiones from Latin into Polish and published them with his own notes. He regarded Gaius as a great teacher of Roman law, he had much reverence and admiration for him, which was reflected in Dydyński’s writings. Therefore Dydyński should be seen as a scientist who created a kind of legend – the legend of Gaius.