1f013a29_in_the_East_Kingdom_of_the_SCA__How_Earned
[Title/Mode of Address] Crown Prince/Princess Your Highness/Your Royal Highness The use of the Heirs version of the Kingdom arms, the coronets, etcetera only for as long as they are reigning. The regalia of each Kingdom is distinct Eastern Crown Prince [How Earned] 
Victory in a Crown Tournament, but not yet ruling a Kingdom
Rank, Title and Customs in the East Kingdom of the SCA
How Earned