How does a knight speak?

English is my second language. I'm writing a classic story about a princess and a knightess, in this sample, the knight, Felicia, is rioting against the king not letting her marry the princess, Azalea. I'm not really sure how a medival knight would speak, got any tips?

"Gold does not flow through my veins, my person is not blessed by the label of a "royal", I say that this title will not adjourn you from being a rotten being. I, much rather, would associate myself, with the word of "loyal". If simply speaking will get me sent to the devil himself, then let me proclaim: I care not for hell, I will gladly go through harms, for I am proud to say, that I've held heaven in my arms. Wealth is not a justified or a valid variable for diving one's making. I am but peasant, yet I've protected her majesty, princess Azalea, better than you. (Felicia loosing all respect for the king) Giving my life to ensure safety to those whom I cherish, is something that cannot be obtained by the meer title of "royal"."