The decline in their net worth is due to extra costs and tough business conditions in Europe and Asia. Continental AG warned its shareholders that these conditions would affect profits. These challenges are expected to last well into 2019. Georg and Maria-Elisabeth are now worth a combined $14.1 billion. This is the largest drop in fortune among the richest families in Europe. Shaeffler AG has also faced similar issues as Continental. Shares in both companies have declined more than 40% so far this year. Continental AG is the world’s second largest auto parts maker. It is now valued at roughly $30 billion. George Schaeffler inherited 80% of the family ball bearing business when his father died in 1996. His mother inherited the other 20%. Together they pulled off one of the largest hostile takeovers in Germany by acquiring Continental in 2008 for more than $17 billion. George, 54, served in the German military and worked in corporate law in the U.S. before moving home to Germany to join the family business. Interestingly, Germany is home to the most billionaires in Europe.