Ranah Teh Naast was a Mandalorian female, and the daughter of Uvhen Chal. At some point in her life, Naast became Mand'alor—the traditional leader of the Mandalorians—and took up the title Mandalore the Destroyer. During her time as Mand'alor, Naast presided over the siege of the city Luon. She spoke with the city's consul amidst the onslaught, outlining the strengths of the Mandalorian culture to her foe before offering the consul a final chance to surrender Luon.
A Mandalorian female, Ranah Teh Naast was born the daughter of Uvhen Chal. Over time, Naast rose to claim the title and position of Mand'alor, the traditional leader of all the Mandalorian warrior clans. Following in the tradition of Mandalores who had come before, Naast adopted a descriptive epithet to set herself apart, taking the sobriquet, Mandalore the Destroyer.
During her reign as Mand'alor, Naast presided over Mandalorian forces during siege of the city of Luon. She elected to speak with Luon's consul during the engagement, wherein Naast detailed the merits of the Mandalorian warrior culture, and upon outlining the Mandalorians' capacity for a strong victory, offered the consul a final opportunity to surrender the city.
Ranah Teh Naast was a confident woman, and took pride in the heritage and culture of the Mandalorians. In a speech to the Consul of Luon, she likened her people to an idea incapable of being killed, inadvertently revealing her belief in the immortality of intellectual concepts. Naast also spoke some degree of the Mandalorian language, Mando'a.
Ranah Teh Naast first appeared in Star Wars canon in the form of a quote used as an epigraph for the eleventh chapter of the novel Imperial Commando: 501st, written by author Karen Traviss, and published October 27, 2009. Ranah Teh Naast is the first female Mandalore established in Star Wars continuity.