Especially after the annexion of the Kingdom of Hanover by Prussia, the old colours yellow&white were found the Guelph-loyal inhabitants. Under these, the flag of the Club of Guelphs (Welfenbund) takes a special part. For the king's old military flags were forbidden by the Prussians, the colours yellow&white changed sides...1

Traditional flag of the Club of Guelphs in the City of Uelzen:

1= Zeitschrift d. Welfenbundes vom Juni 1996