Isaak Gotthelf Weisheit
About
Son of a violinist of a low class tavern. Thanks to his talent, he can enter the Saint Sebastian music school. Isaak loves Julius. But Julius sees him as a friend.
Isaak and his sister are fallen into poverty by the malicious pressure of Moritz. Isaak works in a tavern, where she meets Roberta. After the death of Friederike, he gets invitation to Vienna. He gets success as a pianist there, and experiences love with Amalie and Clara, and the marriage with Roberta. But everything is lost in the World of War. Isaak returns to Regensburg.
(Source: Wikipedia)