Edoardo Agnelli (9 June 1954 – 15 November 2000) was the eldest son of Marella Agnelli (born Donna Marella Caracciolo di Castagneto) and Gianni Agnelli, the industrialist patriarch of Fiat. His body was found dead under mysterious circumstances under a bridge on the outskirts of Turin.
Agnelli was born in New York City to Italian parents (his maternal grandmother was American). After studying at Atlantic College, he read modern literature and oriental philosophy at Princeton University.
After leaving Princeton he travelled in India, pursuing his interest in oriental religion and mysticism, and Iran. According to La Repubblica Agnelli's preoccupations became increasingly erratic, "Mysticism, Franciscanism, Buddhism, lectures against Capital, praise of the poor, criticism of the behaviour of Fiat. He was against materialism which made him move in a different direction, according to The Guardian.
As an adult Agnelli claimed to be the heir apparent to the Fiat empire, but his father, who had already been unhappy with Edoardo's timidity when he was a child, ensured that he would not inherit it. The only official position which the younger Agnelli held in the family businesses was as a director of Juventus football club, in which capacity he was present at the Heysel disaster.
In 1990 Agnelli was charged in Kenya with possession of 7 ounces of heroin, to which he pleaded innocent. The charges were later dropped.
Edoardo Agnelli reportedly converted to Islam in an islamic center in New York City where he was named "Hisham Aziz". Then he met Ayatollah Khamenei in Iran and was reported to have converted to Shia Islam. According to Mohammad Hassan Ghadiri Abyaneh, Agnelli declared faith to Fakhroddein Hejazi and became a Shia Muslim and was named "Mahdi".