John Horace Round was a prominent historian and genealogist known for his expertise in the English medieval period. He made significant contributions to the study of the British peerage, which earned him the position of honorary historical adviser to the Crown. His scholarly work was characterized by meticulous research and a deep understanding of medieval history, particularly in relation to the aristocracy and land ownership in England. One of Round's notable achievements was his translation of the Domesday Book's section on Essex into English, making this critical historical document more accessible to a wider audience. His work not only illuminated the complexities of medieval society but also set a precedent for future historians in the field of genealogy and historical documentation. Round's legacy endures through his rigorous approach to historical research and his influence on the study of medieval English history, establishing him as a key figure in the historiography of the period.