Pallonji Shapoorji Mistry was an Indian-born Irish billionaire construction tycoon and chairman of Shapoorji Pallonji Group. According to Bloomberg Billionaires Index, his wealth was estimated to be US$29 billion at the time of his death. With his 18.4% stake in Tata Sons, he was the largest individual shareholder in India's largest private conglomerate, Tata Group, the primary shareholder being the charitable Tata Trusts. He was the richest Irish billionaire at the time of his death, and the world's 143 richest person.