chivalric, or chivalrous (meaning having courage, courtesy, and loyalty, considerate and courteous to women, or gallant)
hero (man of distinguished courage or ability, admired for his brave deeds and noble qualities or a person who, in the opinion of others, has performed a heroic act and is regarded as a model or ideal)
chivalric hero: a brave, loyal, courteous, and gallant man of distinguished courage or ability that is admired for his brave deeds and noble qualities or who has performed a heroic, idolizing act