Cavaliers

This sense has developed into the modern English use of "cavalier" to describe a recklessly nonchalant attitude, although still with a suggestion of stylishness.

Cavaliers in the arts

Charles I, King of England, from Three Angles. The famous triple portrait of Charles I by Anthony van Dyck.

See also 1600-1650 in fashion and Cavalier poets

An example of the Cavalier style can be seen in the painting "Charles I, King of England, from Three Angles" by Anthony van Dyck.

http://www.answercentral.com/main/Record2?a=NR&url=http://en.wikipedia.org/wiki/Cavalier

cav・a・lier

━━ n. 騎士; （貴婦人の）付添い男, 踊り相手; やさ男; いんぎんな紳士; 【英史】（C-） (Charles I時代の）王党員.
━━ a. 高慢な; 無とん着な; 愛想のいい; （女性に対して）打ち解けた.
cav・a・lier・ly　━━ ad. なれなれしく, ぞんざいに, 横柄に.