Mattheo Riddle

(trying to make this mostly for my sister since this is her favorite Harry Potter character, but this keeps fighting me. I still remember the first time I heard about this character I was very confused, thinking I missed something in the books since I hadn't read them yet but then I realized he was a fan made character...) This is Mattheo Riddle, brother to Tom Riddle, also a son of Voldemort. he's of course in Slytherin house. Friends with the Slytherin gang, Tom Riddle, Draco Malfoy, Blaise Zabini, etc. you get the idea. you can decide your house and where to start.