Moshir od-Dowleh Pirnia House is located in Tehran, on Manoochehri Street. Hassan Pirnia, known as Moshir od-Dowleh, has written many works including the first book of the History of Ancient Iran, the first codified law of International Law in Persian and most importantly, the Constitutional Decree. Moshir od-Dowleh Pirnia House has been registered as one of national monuments of Iran.