Wikipedia
A Peerzada is historically described as an official custodians of Sufi mausoleums and shrines in Muslim lands, with their earliest-ever mentions being in Baghdad, Iraq during the period of the Umayyad caliphate. Oftentimes, a Peerzada was a descendant of those buried within the tomb they were assigned to, hence most of the Peerzadas are syeds.
It also serves as surname for their ascendants in many Indo-Aryan cultures and their accompanying languages, with Peerzada translating into “the son of a saint” in Persian. Today, predominantly-Muslim families bearing the name can be found in various regions around the world, including but not limited to Turkey, Iran, Afghanistan, Pakistan, and the northern regions of India. Much of their lineage can be traced to the central Asian plateaus, consisting of the Soviet Union’s former domiciles, such as Uzbekistan, Kyrgyzstan, Turkmenistan, and Tajikistan. Much of the modern-day Peerzada diaspora derives from the mass migration of the community from Central Asia towards several different areas immediately at a date that is estimated to be sometime during the 15th century.