ALPTEGHIN, the founder of the Ghuznevit dynasty, and grandfather of the celebrated Mahmood of Ghuzni. He was originally a slave in the service of Ahmed-ibn-Ismail, the second sultan of the race of Saman; and having obtained his liberty, rose gradually till he was made governor of Khurasan. He finally revolted, and made himself independent at Ghuzni. He died A.D. 775.