Nemrut (volcano) inside the caldera, becoming the world's second largest caldera lake. Subsequent eruptions separated a small lake Ilı from Lake Nemrut. Nemrut volcano has an elliptical shape, its size at the base is 27×18 km, and its center contains 377.5 km of volcanic materials. The caldera of Nemrut is the largest in Turkey, the fourth largest in Europe and sixteenth largest in the world. Locals link the name of the volcano with the legendary ruler Nimrod, who is credited with the construction of the Tower of Babel. Turkish chronicles of the 16th century reproduce a local legend as follows: Eruptions of
Orontes II Mount Nemrut detailing the ancestry of Antiochus I Theos of Commagene mentions an ancestor whose name was incompletely preserved, and who was a son of Aroandas. This Aroandas (Orontes) is inferred to be the second ancestor of Antiochus listed in the inscriptions from Mount Nemrut who bore that name, succeeding the first Aroandas, who in turn was the son of Artasyrus and who married Rhodogune, the daughter of Artaxerxes II of Persia. Friedrich Karl Dörner and John H. Young (1996) interpreted the first preserved letter of the name of the son of Aroandas II as a delta, so that the