Qiyath ad-Din Pir-Shah ibn Muhammad

He is mentioned in his father Muhammad's Wikipedia page:

Issue

• Jalal ad-Din Manguberdi
• Rukn ad-Din Qursanjdi
• Qutb ad-Din Uzlaq-Shah
• Qiyath ad-Din Pir-Shah
• Yahya Hur-Shah
• Kumakhti-Shah
• Ak-Shah
• Princess Khan-Sultan
• Princess Aysi Khatun

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• From the Encyclopaedia Iranica page of Qotlog Tarkan Khatun:

QOTLOḠ TARKĀN ḴĀTUN (or Tarkan), ʿEṢMAT-AL-DONYĀ WA’L-DIN, Qara Ḵetāy ruler of Kerman (655-89/1257-83). She probably was born between 605-610/1208-1213 in Transoxania; she was enslaved during childhood and acquired by an old merchant from Isfahan, who raised her as his own daughter and provided her with an excellent education (Anonymous, p. 96). Other historians first mention Tarkān as a concubine of Ḡiāt̠-al-Din Piršāh, a son of Sultan Moḥammad Ḵˇārazmšāh (Waṣṣāf, 1853, p. 287; for the name Tarkān/Tarkan, see Qazvini, pp. 62-63), and subsequently Borāq Ḥājeb, a chamberlain (ḥājeb) in Sultan Moḥammad’s service and the first Qotloḡḵāniya ruler of Kerman (Mostawfi, p. 530). Four months after Borāq’s death (20 Ḏu’l-ḥejja 632/5 September 1235), his nephew and successor, Qoṭb-al-Din Moḥammad, married Tarkān.