article_snippet: Michael Wright was estimated to be worth $1.5 billion when mining heir Michael Wright died at 74 in 2012.
article_snippet: Michael Wright was the son of Peter Wright, who co-founded Hancock Prospecting and Wright Prospecting with Lang Hancock .
article_snippet: Mr Wright was estimated to be worth $1.5 billion when Mr Wright died at 74 and was the son of Peter Wright, who co-founded Hancock Prospecting and Wright Prospecting with Lang Hancock - Gina Rinehart's father.
highlights_snippet: Michael Wright was estimated to be worth $1 billion when mining heir Michael Wright died at 74 in 2012 .