Xander, or maybe Xerxes.
X is ten in Roman numerals.
It's hard to find names that both begin with X and have a Turkish connection.
Xerxes was the Persian King of Kings who is probably best known today as the king whose army defeated the 300 Spartans at Thermopylae (remember the phrase μολὼν λαβέ/molṑn labé/come and take them - according to Plutarch, Xerxes was the one Leonidas said this to.) Modern Turkey was part of the Persian Achaemenid Empire in Xerxes time.
Xander is a common short form of the Greek name Alexander. Supposedly xander is also related to "exander", a Latin expression meaning defender of men -- some online baby name dictionaries state this but I have my suspicions. More to the point, Alexander the Great of Macedon conquered and his successors ruled the Achaemenid Empire, again including the territory of modern Turkey.