Harvard to rename school after top Republican donor following $300m gift

Graduate school of arts and sciences to be named in honor of Ken Griffin, 54, hedge-fund billionaire and world's 35th richest person

Harvard University will rename its graduate school of arts and sciences after the billionaire hedge fund executive and Republican mega-donor Kenneth Griffin, the institution announced on Tuesday, after a new $300m contribution brought Griffin's total support of his alma mater to more than half a billion dollars.

Griffin, 54, is the founder and chief executive of Citadel, a $59bn hedge fund, and Citadel Securities, which trades securities. He is the 35th richest person in the world, with a net worth of $34.9bn, according to the Bloomberg billionaires index.