Myriah is the eldest child of Prince Calon Martell. Her mother is an Orphan of the Greenblood named Yna who befriended Prince Calon as children of the Water Gardens.Myriah has one full-blooded sibling, Falyse Sand.

Myriah was raised by her Father in Sunspear, developing a close bond with Calon. Among all her siblings, both Sand and Martell, Myriah is known to be Prince Calon's favorite.

Now a woman grown, Myriah acts as an advisor for her father and is known to be confident and beautiful. She's loyal to both House Martell and her mothers people, the Orphans.