2 occurrences in 2 dictionaries
Reference: Gabatha
Hastings
One of two eunuchs whose plot against Artaxerxes (the Ahasuerus, i.e. Xerxes, of canonical Est.) was discovered and frustrated by Mardocheus (Mordecai). Ad. Est 12:1. In Es 2:21 he is called Bigthan and in Es 6:2 Bigthana.