We actually never saw something abour Starlight's mother, so i liked to headcanon her design.
1.- So her name's Lucero Glimmer, a beautiful young mare, who enjoyed dancing and music, her personality was rather nice and friendly.
She was a dancer in a club, she really loved dancing.
She met Firelight in that club, Firelight was an University student who wanted to have some fun with his friends, So then he kinda fell in love with Lucero, she was so beautiful, and the way she dances, makes him want to dance…with her.
Lucero was 3 years older than Firelight.
Both loved each other so much.
In this scene, she saw him just standing, so she wanted to make him dance, after all, it was a club, but when she was close to him, she liked him, he was quite handsome, she even told him.
''Lucero: Such handsome stallion''.
''Firelight: …….Marry Me''.
So after some years of friendship, lilttle Starlight was born! with two loving parents.
Sadly, Lucero developed a disease that was deteriorating her with each passing day, so she lived her last days with her family, until she had to go.
This hurted Firelight and Starlight too much, it was a very hard time on their lifes. Firelight promised to be with her daughter all the time, and never let her be alone.
After some months, a new family of unicorns moved in Sire's Hollow, it was Sunburst's family, they became good friends with Firelight and Starlight. Firelight was relieved that Starlight made a friend of her age.
2.- Stellar Flare and Sunspot, two cute dorks in their student daysHeart always giving gifts and love to each other.
They both married at a young age, they had their good and bad times, but loved each other, and wanted to be together all the time.
Sunspot was the ''nerd'' of his class, a young stallion who was shy, but liked reading, and studying.
Stellar, was a popular mare in her young days, she was beautiful to the eyes of other ponies, she had a crush in Sunspot, he was so smart, and she liked that about him, she also was quite smart aswell, she liked studying too.
Both were good friends since they were small, always liked to be around each other.
One day, Sunspot declared his love for Stellar with a Sunflower, her favorite flower.
After some weeks, both married, and later after some years, they had Sunburst.Heart