King Thorin and Queen Katherine ruled under the mountain.They are known as the greatest King and Queen to ever rule in Erebor.Frerin and Thalia grew up to be as strong and as stubborn as their parents.Frerin is the spitting image of his father, just like Thalia is the spitting image of Katherine.They also had two little brothers and two little sisters.Twin boys and twin girls.The boys Barin and Tharin, had their mother's hair and father's eye's.The girls Karin and Thisal, both look like their father but have their mothers eye's.All the girls are beardless like their mother.
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Fili and Tauriel did marry,had three children.They had two boys and a girl, Gili, Bili and Saili.Kili found a nice human woman named Kelly,they married.They had two boys, Rilly and Killy.