RYAL Gold coin, Rose Noble I've heard of the Spanish réal, but not Rose Noble.

the rose noble-- a noble was a british gold coin worth 20£s, it was embossed with an image of a rose.

There is the tudor rose, but before that, the house of york and lancaster had 'the war of the roses'-roses were often used as royal emblems. so it's not odd that money was too. (it was in use in the 14 century--till i don't know when)