what should slick's middle and last name be?and is he royalty или not?

he was abandoned as a kid and was found by his sister Cristena.he is brother and sister with crystal(amy_rose12)his grandpa was apperently named slick as well and was married to crystal then somehow crystal and slick now ended up here now as bro and sis.slick had 3 parents the hedgehog left after the threesome and the cat and лиса, фокс stayed together and soon released slick.he doesn't know of his last или middle name.he suspects the hedgehog was a desendent of slick and crystal in the past.