The Sadz or Asadzwa, also Jigets are a sub-ethnic group of the Abkhazians. They are sometimes purported to have originated from the Sanigoi tribe mentioned by the Classic authors. In the 6th century, they formed a tribal principality, which later commingled with the Abasgoi, Apsilae and Missimianoi into the Kingdom of Abkhazia.

Until 1864 Sadz lived at the Black Sea coast north to Gagra until the river Khosta (Khamysh). They formed the Sadzyn area, which consisted of the possessions of Kamysh, Arydba, Amarshan and Gechba clans, under the hegemony of Tsanba clan. The Ubykh princes Oblagua, chizmaa and Dziash also originated from the Sadz.

Some think that in the 12-14th centuries a part of the Sadz have been forced to resettle to the northern mountainside of Caucasus Major under the Ubykh pressure. They formed there Abazin people. This is only one of the theories explaining the migration from Abkhazia of the ancestors of what is now the Abaza people. After the Russian-Circassian War ended in 1864 the most of Sadz were forced to turn muhajirs, moving to the Ottoman Empire. Some of them settled in Adjara (then under the Ottoman possession).

Mark R. Herring (born September 25, 1961, in Johnson City, Tennessee) is an American politician. A Democrat, he was elected to the Senate of Virginia, in a special election on January 31, 2006, winning against Republican candidate Mick Staton. He currently represents^[update] the 33rd district, made up of parts of Fairfax and Loudoun Counties.

Herring was educated at University of Virginia (B.A., Foreign Affairs and Economics); University of Virginia (M.A., Foreign Affairs); University of Richmond (J.D.). He served in elected office on the Loudoun County Board of Supervisors from 2000 to 2003, and was the Town Attorney for Lovettsville from 1992 to 1999. He is the principal with The Herring Law Firm, P.C., in Leesburg, Virginia. His practice includes business and corporate law, civil litigation, land use law, municipal law, wills, trusts, and estates.^{[citation needed]} He is admitted to practice before the Virginia Supreme Court, United States Court of Appeals for the Fourth Circuit, and United States District Court for the Eastern and Western Districts of Virginia, and United States Bankruptcy Court for the Eastern and Western Districts of Virginia.^{[citation needed]} Senator Herring is a member of The George Washington University Paralegal Studies Programs advisory board.^{[citation needed]}