cupbearer(n = noun.person) - the attendant (usually an officer of a nobleman's household) whose duty is to fill and serve cups of wine;
is a kind of attendant, attender, tender
1. One whose office it is to fill and hand the cups at an entertainment. [1913 Webster]
2. One of the attendants of a prince or noble, permanently charged with the performance of this office for his master. Neh. i. 11. [1913 Webster]
cupbearer, n. a person who serves wine, esp. an officer of a royal or noble household.