|Role||Sixth Imperator of the UEE|
|Years Held||2672 - 2697|
Illyana Messer or Messer VI was the 6th Imperator of the UEE.
She named her youngest son, Samuel, as her successor in 2697. Is mentioned in the history of Leir Galactic Guide that she tried to consolidating her power in 2677 and so did not commit resources to developing the system.
Illyana assasinated her father Corsen in 2672.