EN
Heinrich Eduard Herz (1785–1849) was once recognized as one of the most successful Jewish merchants in Prague. Conclusions are made on the basis of research of archival sources in the Czech Republic and in Vienna, Austria, and of related literature. The article deals not only with a personal biography of Herz and details from his private life, but also with his professional career, his public activities and the philanthropic legacy of his whole family. Short summaries of blood-related merchant and 19th Century Prague noble families are also a part of this thesis.