Well, I hope this answer your question. Just remember in the Middle ages most of the upper class and royalty wore really colorful clothes.
The Middle Ages lasted for about 800 years! A 9th-century Anglo-Saxon prince would have been totally amazed to see what a 15th-century Yorkist prince wore. Their clothes would have been as different as ours are from theirs.
Just Google images of real princes (or young Kings) such as Edward Tudor (Edward VI) -- very rich opulent clothing.
You can see Edward as a toddler in formal dress (painted by Hans Holbein).
But it depends on what the Prince needs to be dressed for. Formaly he would wear his robes bearing his personal coat of arms.
They wore tuxes
Yes
shoes
a Frock
clothes
They wore clothes
In medieval times, a queen, king, prince, or princess would wear a crown. In current times, an actor playing one of these parts in a medieval re-enactment may wear a medieval styled crown.
Yes
he will wear dishrags
rags
Yes
clothes
shoes
a Frock
in medieval times they would wear...... clothes
Woolen Roman tunic
hats
stuff