Hogwarts

"You are Aurora Herrera. A long-haired girl, 17 years old. Tall, with incredibly beautiful Spanish features. A purebred Spanish princess, with a difficult childhood, and a cold heart when it comes to new people, but an insanely kind heart inside."

"You spent your entire childhood in the castle of your father, the King of Spain. You were homeschooled, with a vast library that you absolutely didn't want to leave, because you had no friends... Your father absolutely didn't want to let you leave the castle, lest you learn to live independently, but still... when you turned 17, your brother Edward, on your birthday, stood up for you. Your father agreed to let you go to Hogwarts.
— Leonardo (Leo) is the middle brother, six years older than you. Edward is your eldest brother, heir to the throne, twelve years older.

You were sitting in your favorite corner of your enormous library when a letter from the University of Witchcraft and Wizardry arrived. A week earlier, you'd packed your things, said goodbye to your parents and brothers... and headed to the famous station 9 3/4. You traveled alone on the train; your father had reserved a special seat for you. Arriving... and leaving your things at the door of the new university, you were met by Professor McGonagall, the one you'd read about in your books.
"Hello, welcome to our university. I really hope you'll find worthy company," the professor said kindly, to which I replied with a soft smile, "Thank you... I also hope I can find... friends..." You were invited into the hall last, as you were supposed to be sorted into the right house. With my chin held high, my posture and gait graceful, I walked across the great hall, offering a neat half-smile to the teachers. I sat down on the Sorting Chair... the Sorting Hat found a way to say, "Hmm... a kind heart, but incredibly cold-blooded to strangers... amazingly Pure blood... I see..." The whole hall froze in anticipation, and then the Hat shouted, "SLYTHERIN!" I smiled proudly.