The youngest among the 400 was 30-year-old Daniel Ziff,who shares a $1.2 billion inheritance from his father William Ziff Jr. with his two brothers,ages 34 and 38.

• 400位富豪中最年轻的是30岁的丹尼尔·齐夫，他和现年非别34岁和38岁的两个哥哥继承了其父--IT媒体出版业巨头威廉姆·齐夫的财产，而丹尼尔获得了其中的12亿。