The Aq Qoyunlu or Ak Koyunlu, also called the White Sheep Turkomans (Persian/Azeri: آق قویونلو), was an SunniOghuz Turkic tribal federation that ruled parts of present-day Eastern Turkey, Armenia, Azerbaijan, northern Iraq, and Iran from 1378 to 1508.

According to chronicles from the Byzantine Empire, the Aq Qoyunlu were present in eastern Anatolia from at least 1340, and most of their leaders, including the dynasty's founder, Uzun Hassan, married Byzantine princesses.

The Aq Qoyunlu Turkomans first acquired land in 1402, when Timur granted them all of Diyarbakır in present-day Turkey. For a long time, the Aq Qoyunlu were unable to expand their territory, as the rival Kara Koyunlu or "Black Sheep Turkomans" kept them at bay. However, this changed with the rule of Uzun Hassan, who defeated the Black Sheep Turkoman leader Jahān Shāh in 1467.

After the defeat of a Ilkhanate leader, Abu Sa'id, Uzun Hassan was able to take Baghdad along with territories around the Persian Gulf. He expanded into Iran as far east as Khorasan. However, around this time, the Ottoman Empire sought to expand eastwards, a serious threat that forced the Aq Qoyunlu into an alliance with the Karamanids of central Anatolia.

Seda Sayan (born Aysel Gürsaçar, December 30, 1964) is a Turkish pop folk singer, actress and TV variety-show hostess. She now hosts a popular talk show on BEYAZ TV in Turkey, which is called "Sultan-ı Beyaz ".

She had her date of birth changed via a court decision in 1978 to January 4th of 1959 in order to be eligible for performing at a specific venue.

Sayan was born in a poor family so she had worked from the very young age. She started performing at the age of 16.her big shot came in 1984 when she played a role in front of Kadir Inanir. In 1987 she married Ridvan Kilic ,a soccerplayer ,the marriage did not last long and they divorced a few months later. She met Sinan Engin in 1989 and they got married. They’ve had their son Oğulcan Engin in 1990,but this time it did not work out for them either and the couple divorced in 1995.Sayan then developed a relationship with Mahsun Kırmızıgül,a famous singer, for three years. Since 1998 she has had relationships which have not lasted long. She has been known for her controversial lifestyle. She always talks about her very difficult childhood openly and claims to be proud of her origins. Sayan has been trying to her the poor through her career time and to make their voice heard.