In New York, he represented the Newspaper Guild in contract negotiations with management, another unlikely role for the heir to a banking fortune.
The youngest heir to his family's banking fortune, de Rothschild was born in 1978 in London, England.
He used some of his family's banking fortune to set up Bancroft as a small land-mine clearing operation.
The auction yesterday dispersed the collection formed at the turn of the century in Paris by Martine, the Countess de Behague, the heiress to a French banking fortune.
Richard Mellon Scaife, the publisher and heir to a banking fortune, bought an extra house too; he needed it for the staff.
He had been raised on Beacon Hill in Boston, scion of his father's vast banking fortune.
Sir Percival, an heir to the Sassoon textile and banking fortune, was born in 1892 in Bombay, where his family's mills were located.
He had threatened the suspect, Magnus Gaefgen, in the hope that he would lead the police to an 11-year-old boy, Jakob von Metzler, heir to a banking fortune.
His likenesses of the five sons of the banking fortune's founder, Mayer Amschel Rothschild, done from 1836 on, helped create a public image for the family bank.
The four-story, 20,000-square-foot house was designed and built in 1915 by the architect Ogden Codman for Lucy Drexel Dahlgren, heiress to a banking fortune.