I've seen so many family trees for TLK.. so I decided to make one!
This isn't quite 'official' but its my view on the matter. Be warned as there is a lot of INCEST which may be disgusting but makes sense as 'incest' has occurred many times in Royal Families.
Ah, well basically. Sarabi and Scar had Zira and a few of the random outsiders in SP. Sarafina and Scar have Nala, Kovu Vitani and a few random outsiders in SP. Sarafina's sisters give birth to some of the random prideland lionesses in SP. Sarabi's sisters have Kula, Tojo and Tama. Mega who is a 'semi-canon' character sires a few outsider lionesses with a lioness from Zira's pride. This is where it gets a bit 'dark'.. XD Scar blackmailed Sarabi to not tell Zira who her true father is. So he seduces her and they end up having Nuka, Nunka (A fan-character that was derived from a SP plushy) and the many lionesses that make up Zira's Outlander Pride. Kovu and Kiara also had children, but I decided to leave them blank. makes sense now?