There-was-a-by-product-of-this-centralisation.-By-the-middle-of-the-14th-century-knights-would-feel-free-to-release-themselves-from-life-long-service-to-a-single-feudal-overlord.-If-not-specifically-called-to-service-by-the-King-they-began-to-roam-the-western-world-depicting-themselves-as-fighting-against-“injustice”-and-righting-wrongs.-In-practice-knights-fight-for-any-cause-for-which-will-give-them-a-suitable-reward.-Relatively-large-numbers-of-them-move-around-Europe-essential-acting-as-mercenaries-most-of-them-governed-by-the-chivalric-code-but-some-quite-specifically-ignoring-it-see-the