Holy Roman Emperor from 1133 and German king from 1125. His election as emperor, opposed by the Hohenstaufen family of princes, was the start of the feud between the Guelph and Ghibelline factions, who supported the papal party and the Hohenstaufens' claim to the imperial throne respectively.
Known as ‘white sun in blue sky’, the flag of Chinese revolutionary leader Sun Zhong Shan appears in the canton. The rays of the sun represent 12 traditional Chinese hours (each equalling two hours) symbolizing progress. Red is a traditional Chinese colour. Effective date: 8 October 1928.