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Voldemort and Bellatrix had a baby in 1980, the same year that Harry Potter was born. His name was Thayne. Voldemort didn't want anything to do with the child when he was born, so as a strong follower of Voldemort, Bellatrix agreed and put him up for adoption.
Thayne grew up knowing about his family, but yet he hated what The Dark Lord was doing and was even prepared to die for what was right, as were a lot of other people. He denied his relation to Voldemort at all costs, but people saw through his lies and straight at his surname. Riddle.
After Voldemort had been defeated, Thayne met a muggleborn Witch, Elora, and fell in love, and in 2004 they had a son, they named him Calias after Elora's father.
Despite growing up with parents both against the Dark Arts, Calias loved it. He loved the thought of the war and was always wishing he had been there. By the age of 9 he was showing all the traits of his grandparents, and he was living proof that it's Nature not Nurture.
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