The Columbia Encyclopedia, Sixth Edition. 2001-07.
Tahmasp
(tä´mäsp) (KEY) , 151476, shah of Persia (152476), son and successor of Ismail and the second of the Safavid dynasty. He successfully repulsed persistent invasions by the Uzbeks. Sulayman I also invaded Persia, continuing the wars between Ottomans and Persians commenced by Selim I. One stage of these wars ended with a peace treaty in 1555. In 1561 an Englishman, Anthony Jenkinson, succeeded in establishing a trade route to Central Asia and Persia across Russia. Continual warfare during the reign of Tahmasp helped bring about internal decline.