RIYADH, SAUDI ARABIA - NOVEMBER 1: Princess Diana, wearing a Catherine Walker outfit, attends a picnic in the desert near Riyadh, Saudi Arabia on November 1, 1986 (Photo by David Levenson/Getty Images)
RIYADH, SAUDI ARABIA - NOVEMBER 1: Princess Diana, wearing a Catherine Walker outfit, attends a picnic in the desert near Riyadh, Saudi Arabia on November 1, 1986 (Photo by David Levenson/Getty Images)