 Increasing economic success allowed Busch to visit Wiedensahl more frequently . Busch had decided to leave Munich , as only few relatives lived there , and the artists ' association was temporarily disbanded . In June 1867 Busch met his brother Otto for the first time , in Frankfurt . Otto was working as a tutor to the family of a wealthy banker and industrialist , Kessler . Busch became friends with Kessler 's wife , Johanna , a mother of seven and an influential art and music patron of Frankfurt . She regularly opened salons at her villa , frequented by artists , musicians and philosophers . She believed Busch to be a great painter , a view supported by Anton Burger , a leading painter of the <unk> <unk> , the <unk> @-@ based group of painters . While his humorous drawings did not appeal to her , she supported his painting career . At first she established an apartment and studio for Busch in her villa , later providing him with an apartment nearby . <unk> by Kessler 's support and admiration , and introduction to the cultural life of Frankfurt , the ' Frankfurter Years ' were the most artistically productive for Busch . At this time he and Otto discovered the philosophical works of Arthur Schopenhauer . 
