This paper presents an ontological model originally developed within a graduate project to integrate metadata on English landscape prints, the Green Frog porcelain Service, and architectural landmarks of Great Britain. While the initial model demonstrated how heterogeneous (pictures, porcelain, places, people) data and contextual information could be linked and enriched through thesauri alignment, its recent refinement focused on mapping to the CIDOC Conceptual Reference Model (CIDOC CRM). This step ensures semantic interoperability and significantly extends the model’s applicability. The result is a more robust tool for unifying, studying, and presenting cultural heritage objects across institutions.