1 : showy in dress or bearing : smart. 2a : splendid, stately a gallant ship. b : spirited, brave gallant efforts against the enemy. c : nobly chivalrous and often self-sacrificing. 3 : courteously and elaborately attentive especially to ladies.

Is Gallantness a word?

“Gallantness.” Merriam-Webster.com Dictionary, Merriam-Webster,

What is a gallant person?

brave, spirited, noble-minded, or chivalrous: a gallant knight; a gallant rescue attempt. exceptionally polite and attentive to others, especially to women; courtly. stately; grand: a gallant pageant. ... a man exceptionally attentive to women. a stylish and dashing man.