Seyyed Zia al-Din Tabataba'i Yazdi ( Persian : سید ضیاءالدین طباطبایی یزدی ; June 1889 – 29 August 1969) was an Iranian journalist and pro-Constitution politician who, with the help of Reza Shah , spearheaded the 1921 Persian coup d'état and aimed to reform Qajar rule, which was in domestic turmoil and under foreign intervention. He subsequently became the 13th Prime Minister of Persia (Iran).