June 19 (Reuters) - Campbell's said on Thursday

that Mary Alice Dorrance Malone, its largest shareholder and a

descendant of its founder, has died at the age of 75.

The company did not give a cause of death.

Malone was the longest-tenured board member at the canned

soup maker. She was elected to the board in 1990 and was most

recently a part of its governance and compensation and

organization committees.

"Her extensive knowledge of Campbell's history, organization

and culture, and her love for our food and iconic brands were

invaluable to management and the board," CEO Mick Beekhuizen

said in a statement.

Malone was the granddaughter of John Dorrance, who invented

the condensed soup that turned Campbell's into a household name.

She had a net worth of $3.6 billion, according to Forbes.