The
Navy Royal inaugurated squadron colours during the reign of Elizabeth I (1558-1603) to subdivide the English fleet into three squadrons. There were three classes of admirals and differentiated by using coloured flags. In 1620 the official
flag ranks of admiral, vice admiral, and rear admiral were legally established that arose directly out of the organisation of the fleet into three parts. In 1688 the rank of
Admiral of the Fleet was formally created The Rear-Admiral of the White was a senior rank of the Royal Navy of the United Kingdom, immediately outranked by the rank
Rear-Admiral of the Red (see order of precedence below). Royal Navy officers currently holding the ranks of commodore, rear admiral, vice admiral and admiral of the fleet are sometimes considered generically to be admirals. From 1688 to 1805 this rank was in order of precedence eighth; after 1805 it was the ninth. In 1864 it was abolished as a promotional rank. (pictured opposite is the command flag for an Rear-Admiral of the Red). ==Order of precedence Admirals of the Colour==