There was never an adopted standard, but certain personages were commonly used in this time. More Name-calling Court cards: There was a trend during the 15th century for French card manufacturers to designate the court cards as literary and historical figures. The only King facing sideways is the King of Diamonds, and together with the Jack of Spades and the Jack of Hearts, these three cards are sometimes referred to as the one-eyed royals.
Unlike most of the other court cards, the Jack of Spades and the Jack of Hearts both have a side profile, hence their designation as 'one-eyed Jacks'.
