The Young Prince is a larger version of The Toddler Prince (same features). You can see the picture, he dosent even have ARMS!!!
In order to grow up The Toddler Prince, these requirement are necessary: Has killed 25 mobs, has been fed 10 times, and 10 Minecraft days have passed.
The Young Prince has 1500 health, 14 defense, and attacks for 50 damage (45 to Iron Golem). Its abilities range from lightning, fireballs, to ice-breath. It will also regenerate 5 health periodically. The Young Adult Prince retains the same features as previous stages, apart from the size and stat differences.