Though the wedding took place during a heavy snow, deemed a good omen, the imperial couple's marriage had disintegrated by early 1958 owing to Soraya's apparent infertility. The Shah's only child, his daughter Princess Shahnaz, had married Ardeshir Zahedi, the son of the former Prime Minister, General Fazlollah Zahedi, a man whom Mohammad Reza despised and had dismissed in 1955. The Shah told Soraya that "a Zahedi could not continue the dynasty of the Pahlavis", and that she had to give him a son so the House of Pahlavi could continue. She had sought treatment in Switzerland and France, and in St. Louis with Dr. William Masters. The Shah suggested that he take a second wife to produce an heir, but she rejected that option.