Shethar

A man, in the time of Exile and Return · named in 1 verse

Shethar, one of the seven Persian nobles who had access to King Ahasuerus's presence.

From Easton's Bible Dictionary

A star, a prince at the court of Ahasuerus (Esther 1:14).

Easton's Illustrated Bible Dictionary, 1897 — public domain, quoted in full and unedited.

First named at Esther 1:14.

Esther 1:14 His closest advisors were Carshena, Shethar, Admatha, Tarshish, Meres, Marsena, and Memucan, the seven princes of Persia and Media who had personal access to the king and ranked highest in the kingdom.