Abstract: This article presents the results of research of text sources associated with the image of Hippocampus or seahorse in the European culture of antiquity of the early modern age. The author examines the use of this image of Roman culture and adaptation of this character by modern arts in accordance with the Roman patterns. Within the framework of this research, the author uses not only the visual sources, but also other cases of depiction of the image of Hippocampus. Emphasis is made on impersonation of the image of Hippocampus in art objects and images of theatricalizes performances of the XVI century. The work employs semiotic and complex methods of research, as well as traditional methods of art history, historical and formal analysis. The analysis of similar cases allows observing the whole picture of the sources of formation of various form of European art of modern age. Special interest for the author presents impersonation of the image of Hippocampus in modern theatricalized performances as one of the attributes of sea deities, as well as the instances of its application.