Edge Rothschild

In the ancient times in the 1900's. There were four brothers in the Rothschild family in four cities that grew the family empire tenfold. Namely Nathan Mayer Rothschild in London, James Mayer de Rothschild in Paris, Carl Mayer von Rothschild in Naples, and Amschel Mayer Rothschild in Frankfurt. 

These four brothers grew the Rothschild family fortune from millions to billions of dollars in the 19th century. After that strict inheritance laws and cousin marriage ensured that the family bloodline remained pure and untainted by outside influence. 

By the year 2050 , the Rothschild were the richest family in the world eclipsing the 100 trillion dollar mark. After that they were no longer in the public eye , 50 years had passed and the total networth of the family was a mystery.