The episode was bad it didn't give any information about Sheikha Maytha not even her full name. The video of Sheikha Maytha is from November 2018. The little it showed in the trailer the same it showed in the episode. All the other things about Sheikha Latifa, Sheikha Shamsa, and Princess Haya that everybody knows. The episode belongs to Aisha Al Qahtani who escaped from Qatar and doesn't belong to any ruling family.
According to a comment on Twitter, her full name is Sheikha Maytha bint Saeed bin Obaid bin Juma Al Maktoum. If that's true, then she is the daughter of Sheikha Hind's cousin.