Braavosi dress in flashy colors while the very rich and powerful dress in black and in blues that are almost black. Officials of Braavos, called keyholders and justiciars, wear drab coats of brown or grey. The city is also renowned worldwide for its courtesans. Every courtesan has her own barge and servants to work them. The beauty of famed courtesans has inspired many a song. They are showered with gifts from goldsmiths and craftsmen beg for their custom. Nobility and rich merchants pay the courtesans large amounts of money to appear alongside them at events, and bravos are known to kill each other in their names. The character Syrio Forel, former first sword of the Sealord of Braavos, introduces Arya Stark to a unique form of Braavosi sword fighting, called Water Dancing. The style is a refined form of fencing in which the practitioner stands sideways and wields a slender blade. Pugnacious bravos fill the city, frequently dueling to display their skill.