A Knyght ther was, and that a worthy man,
You can find his tale here.
Chaucer’s Knight is generally thought of by scholars to be an experienced and professional soldier, motivated by religious ideals. Though it’s possible to read the profile ironically (and many have; the word ‘worthy’ is repeated 5 times, and his rugged appearance can be interpreted to indicate a mercenary dog of war), the prevailing view is that he’s a corrective to the blingy/morally dubious knights of previous Mediaeval Estates Satires.
To help improve the meaning of these lyrics, visit "The Canterbury Tales (General Prologue)" by Geoffrey Chaucer and leave a comment on the lyrics box