Anniversary of Reza Shah's death (first Pahlavi ruler), Mordad 4. Reza Shah Pahlavi, the founder of the Pahlavi dynasty and its first monarch, died on Mordad 4, 1323, in Johannesburg, South Africa. After abdicating the throne in Shahrivar 1320, he was forced by the Allies to leave Iran and live in exile. Reza Shah's death had a significant impact on Iran's political landscape and marked the beginning of a new era in the country's modern history. Each year, this date is noted as a reminder of the end of his political and personal life, and it is revisited in some historical and academic circles.