In addition to comments by Malcolm- Morgiana was a servant girl in Ali Baba and the Forty Thieves. It became popular as a first name (see Macleod family genealogy, among others).

Morgiana in Ireland is in the Russell MS of 1812. It is listed as the name of an Irish jig (see also Morgiana in England).
See Morgiana Ireland (/a) for chords, tune.