FILE - In this undated file photo, Russia's Czar Nicholas II, seated second from left, Czarina Alexandra, center rear, pose with their family members, bottom row from left to right, Princess Olga, Czar Nicholas II, Princess Anastasia, Prince Alexei and Princess Tatiana, and top row left to right, Princess Maria and Czarina Alexandra. Russia's Investigative Committee said Wednesday, Sept. 24, 2015, the remains of Czar Nicholas II and his wife are to be exhumed to determine whether body parts unearthed eight years ago are those of two of their children. (AP Photo/File)