Sarabi is more than just a mother to Simba,she's a very good mother-in-law to Nala,a very sweet grandmother to Kiara,the devoted wife of Mufasa,a very good friend of Sarafina,and also,she's Scar's sister-in-law.
Here's the pic of Sarabi.

I hope you all enjoy this info I've taken the time to write down,and find it very useful,as well as handy.