Member of the prominent Rothschild banking family, he founded the J. Rothschild Assurance Group in 1991.
He began working for the family bank in 1963. In 1980, he resigned due to a family dispute.
He's served as the Honorary President of the Institute for Jewish Policy Research.
He married Serena Dunn Rothschild, and he has a son named Nathaniel. His father was Victor Rothschild, 3rd Baron Rothschild.