Baron Leopold Julian Kronenberg was a Polish banker. Wikipedia
Born: July 27, 1849, Warsaw, Poland
Died: February 23, 1937 (age 87 years), Brzezie, Poland
Children: Leopold Jan Kronenberg and Józefina Róża Kronenberg
Nationality: Polish
Grandparent: Tekla Kronenberg
Parents: Leopold Stanisław Kronenberg
Partner: Josephine de Reszke