Emilio Borsa is not a widely recognized name in the annals of art history, and there is limited information readily available about an artist by this name. Without specific historical records or widely acknowledged contributions to the field of art, providing a detailed biography is challenging. It is possible that Emilio Borsa may have been a local or lesser-known artist whose works did not garner significant attention on the international stage, or he could be a contemporary artist with a developing career. If the latter is the case, his biography might still be in the making, and there may be more information available in the future as his career progresses. Alternatively, there might be a need to verify the spelling or look for alternate names or periods under which the artist might have been more active or better known. If you have any additional details or context such as a specific artwork, time period, or country associated with Emilio Borsa, please provide them, and I will do my best to supply you with more precise information.