Former flag of the Municipality of Macau when it was part of Portuguese Macau.
Flag_Portugal_(1640).svg
File:Flag_of_Macau_Municapility.png
File:Flag of Portuguese Colony Governor.svg
File:Corona real abierta.svg
File:Coa_Hungary_Country_History_med_(1915).svg
Flag_Portugal_(1640).svg: myself, based on ancient national symbol.
derivative work: NikNaks talk - gallery - wikipedia