Unofficial Upper Sorbia flag (unreferenced).
The inescutcheon is the historical (16th century) coat of arms of Saxony. The tricolore is the Sorbian (Wendish) flag introduced in 1842.
File:Upper Sorbian Flag.gif
Re-creation by composing:
File:Flag of Sorbs.svg
File:Coat of arms of Saxony.svg
File:Upper Sorbian Flag.gif ― Daniel Bunčić.
File:Flag of Sorbs.svg ― Mysid.
File:Coat of arms of Saxony.svg ― Freistaat Sachsen; House of Wettin
Derivative work ― MihailJP