Reconstructed(?) ensign of  Sicily within the Kingdom of the Two Sicilies (1816-1861).
The eagles should be at the hoist, facing towards the fly.
[1]

Steenbergen, Vlaggen van alle Natiën / Pavillons de toutes les Nations / Flags of all Nations (1862).
Aguilas heráldicas.svg
Roberto Breschi. Sicilia (in it). rbvex.it. Roberto Breschi Editore. Retrieved on July 24 2011.
Aguilas heráldicas.svg: Shadowxfox
derivative work: The White Lion (talk)