Hul Gu, better known as Hulagu Khan and also known as Hulagu, Hülegü, or Hulegu. (c. 1217 - Febuary 8, 1265), was a Mongol ruler who conquered much of Southwest Asia. Son of Tolue and the Kerait...
Don't know but look up his grandfather Genghis Khan so look him up and then you can find out about their family history.
Genghis Khan
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Gü is the digraph used in Spanish and Portuguese to write the sound before the vowel letters e, i, where the digraph gu represents the sound