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Bumin Qaghan (Old Turkic: 𐰉𐰆𐰢𐰣:𐰴𐰍𐰣, romanized: Bumïn qaγan, also known as Illig Qaghan (Chinese: 伊利可汗, Pinyin: Yīlì Kèhán, Wade–Giles: i-li k'o-han) or Yamï Qaghan (Old Turkic: 𐰖𐰢𐰃:𐰴𐰍𐰣, romanized: Yаmï qaγan, died 552 AD) was the founder of the Turkic Khaganate. He was the eldest son of Ashina Tuwu (吐務 / 吐务). He was the chieftain of the Turks under the sovereignty of Rouran Khaganate. He is also mentioned as Tumen (土門, 吐門, commander of ten thousand) of the Rouran Khaganate.