hmm I'm writing a more detailed background for the twins.
Just take a moment to imagine the ruckus that would be caused by two perfectly identical twins running around causing mischief for all of the royal household.
----
"Now, Miry, tell me, what does five and five make--"
The twins, four years old, look at each other "confusedly", then back at the tutor, then back at each other
"Yeah, Miry, tell him!"
"What? I'm not Miry! You're Miry!"
"What are you on about? You're definitely Miry!"
"MAMA, MIRY STOLE MY NAME!"
"You hush! I did NOT steal your name, you stole mine!"
"Did not!"
"Did too!"
"Not!"
"Too!"
"..."
"..."
"What are we arguing about again?"