David Simon, who died in March after a battle with pancreatic cancer, was the CEO of SPG. Herbert Simon maintains that he and other family members were not informed about the transaction until after SFG was dissolved. Herbert Simon and his late brother Melvin created Simon Property Group in 1995, which became the nation’s largest mall owner. At the same time, they created the smaller company SFG, which was owned by members of the Simon family and held interests in certain real estate properties outside the publicly traded SPG. The suit states that David Simon had been in discussion with his uncle Herbert over the past few years about liquidating SFG.