Sempad the Constable (also Smpad and Smbat; Armenian: Սմբատ Սպարապետ, romanized: Smbat Sparapet or Սմբատ Գունդստաբլ, Smbat Gundstabl; 1208–1276) was a noble Cilician Armenia. He was an older brother of King Hetoum I. He was an important figure in Cilicia, acting as a diplomat, judge, and military officer, holding the title of Constable or Sparapet, supreme commander of the Armenian armed forces. He was also a writer and translator, especially known for providing translations of various legal codes, and the creation of an important account of Cilician history, called in French the Chronique du Royaume de Petite Armenie (Chronicle of the Kingdom of Little Armenia). He fought in multiple battles, such as the Battle of Mari, and was trusted by his brother King Hetoum to be a key negotiator with the Mongol Empire.