| Name | Julius CASSIRER  |
| Birth | 2 Feb 1841 |
| Death | 17 Jun 1924118 |
| Father | Markus CASSIRER (1801-~1880) |
| Mother | Jeanette STEINITZ (1813-1889) |
| 1 | Julcher (Julie) CASSIRER |
| Birth | 17 Jan 1844139 |
| Death | 17 Jul 1924 |
| Father | Siegfried CASSIRER (1812-~1897) |
| Mother | Henriette FISCHER (1821-1891) |
| Marriage | 17 Mar 1868292 |
| Children | Friedrich (Fritz) Leopold (1871-1926) |
| Bruno (1872-1941) | |
| Elise (Liese) (~1886-) |
See also Claude Cassirer: Misc Note 2 [Spain's refusal to return Pissarro painting]
Julius Cassirer financed a cable factory which exploited a new technology for encasing electrical cable in rubber utilising the knowledge of two nephews of his who had studied engineering and learnt the trick about manufacturing cables in Vienna. He became the major shareholder which his nephews ran.
In 1900, Julius Cassirer bought the painting "Rue de Saint Honoré", by the French impressionist Camille Pissarro, from the artist's close friend and Paris dealer Durand-Ruel. The painting was subsequently inherited by his son Friedrich and his daughter-in-law Lilly. Pictures from the 1930s show the beautiful Pissarro painting in the living room of the Cassirers' residence in Munich. [To see the picture refer Claude Cassirer]
A human disaster followed the rise to power of the Nazis. Mrs. Lilly Cassirer, a widow by then, and her grandson Claude, had to flee Germany. Other members of her family, including her own sister Hanna, who could not escape, were killed by the Nazis in the death camps. A Nazi agent forced Mrs. Cassirer to surrender her Pissarro painting to him. Later on, the GESTAPO seized the painting and included it in an auction in Berlin in 1943. Although Mrs. Cassirer reported the plundering to U.S., German and international restitution authorities, the painting disappeared for decades. The anonymous purchaser of the painting at the 1943 Berlin auction later sold the painting, which was then sold periodically to other parties, who moved the painting from one continent to another, until it was acquired by Baron Heinz Heinrich Thyssen-Bornemisza for his collection, which was subsequently acquired by the Museum Foundation Collection Thyssen-Bornemisza in Madrid. Visitors see it now on the walls of the Museum.
Julius may have been the wealthiest of the Cassirer brothers. In 1912 The Prussian tax authorities estimated his wealth at 3,650,000 Mark and his annual income at 375,000 to 380,000 Mark.