The virtues of the Knights Code of Chivalry were described in the 14th century by the Duke of Burgandy as:
Faith – (1) confidence or trust in a person or thing. (2) belief that is not based on proof. (3) belief in God or in the doctrines or teachings or religion. (4) belief in anything, as a code of ethics, standards of merit, etc. (5) a system of religious belief.
Charity – (1) generous actions or donations to aid the poor, ill or helpless. (2) something given to a person or persons in need; alms. (3) a charitable act or work. (4) a charitable fund, foundation or institution. (5) benevolent feeling, especially toward those in need or disfavor.
Justice – (1) the quality of being just; righteousness, equitableness or moral rightness. (2) rightfulness or lawfulness, as of a claim or title; justness of ground or reason. (3) the moral principle determining just conduct. (4) conformity to this principle, as manifested in conduct; just conduct, dealing or treatment. (5) the administering of deserved punishment or reward.
Sagacity – acuteness of mental discernment and soundness of judgement.
Prudence – (1) the quality or fact of being prudent. (2) caution with regard to practical matters; discretion. (3) regard for one’s own interests. (4) provident care in the management of resources; economy; frugality.
Temperance – (1) moderation or self-restraint in action, statement, etc; self-control. (2) habitual moderation in the indulgence of a natural appetite or passion, especially in the use of alcoholic liquors. (3) total abstinence from alcoholic liquors.
Resolution – (1) a formal expression of opinion or intention made, usually after voting, by a formal organization, a legislature, a club, or other group. (2) a resolve or determination. (3) the act of resolving or determining upon an action or course of action, method, procedure, etc. (4) the mental state or quality of being resolved or resolute; firmness of resolve. (5) the act or process of resolving or separating into constituent or elementary parts.
Truth – (1) the true or actual state of a matter. (2) conformity with fact or reality; verity. (3) a verified or indisputable fact, proposition, principle, or the like. (4) the state or character of being true. (5) actuality or actual existence.
Liberality – (1) the quality or condition of being liberal in giving; generosity; bounty. (2) a liberal gift. (3) breadth of mind. (4) broadness or fullness, as of proportions or physical attributes. (5) liberalism.
Diligence – (1) constant and earnest effort to accomplish what is undertaken; persistent exertion of body or mind. (2) Law: the degree of care and caution required by the circumstances of a person. (3) Obsolete – care; caution.
Hope – (1) the feeling that what is wanted can be had or that events will turn out for the best. (2) a particular instance of this feeling. (3) grounds for this feeling in a particular instance. (4) a person or thing in which expectations are centered. (5) something that is hoped for. [verb] (6) to look forward to with desire and reasonable confidence. (7) to believe, desire or trust. (8) to feel that something desired may happen. [archaic] (9) to place trust [in]; rely.
Valor – boldness or determination in facing great danger, especially in battle; heroic courage; bravery.
There are most likely more words that we could add on to this list, but these are the twelve originally described by the Duke of Burgandy. (according to http://www.middle-ages.org.uk/knights-code-of-chivalry.htm)