Ashpenaz
Easton's Dictionary
The master of the eunuchs of Nebuchadnezzar (Dan. 1:3), the “Rabsaris” of the court. His position was similar to that of the Kislar-aga of the modern Turkish sultans.
Smith's Dictionary
(horse-nose), the master of the eunuchs of Nebuchadnezzar. (Daniel 1:3)