Nashwa is the third of five foals out of Princess Loulou (Pivotal), winner of the Listed Gillies Stakes in England, Group-placed in Ireland and Group 1-placed in France, where she was runner-up in the Gr.1 Prix Jean Romanet. She is a half-sister to the triple winner Louganini (Zoffany).

Second dam Aiming (Highest Honor) has six winners, among them Princess Loulou and Easy Target (Danehill Dancer), third in the Listed Pomfret Stakes.

Third dam Sweeping (Indian King) won as a juvenile and was twice Listed-placed. She is the dam of Watching (Indian Ridge), a Listed winner who was Group 2-placed, of the three-time winner Puteri Wentworth (Sadler's Wells), of the dual winner Desert Lynx (Green Desert), of Starring (Ashkalani) and of White Heat (Last Tycoon). Her descendants include Awzaan (Alhaarth), winner of the Gr.1 Middle Park Stakes and later a sire, Ball Lightning (Daiwa Major), winner of the Gr.2 Keio Hai Nisai Stakes, and Media Mogul (First Trump), winner of the Grade 3 Will Rogers Stakes.

Desert Lynx is the dam of Nufoos, winner of the Listed Eternal Stakes and twice Group 3-placed, and the grandam of Awzaan, of Muraaqaba, winner of the Gr.3 Sweet Solera Stakes and Group 2-placed, and of the Listed winner Muteela, who was Group 3-placed. Puteri Wentworth is the dam of Putra Sas, placed at Group 3 level at the time, Starring is the dam of the Listed winner Letsgoroundagain and the Group 3-placed Manaafidh, and White Heat is the dam of Media Mogul and grandam of Forevertheoptimist, winner of the Listed Dragon Stakes. Sweeping is a daughter of Glancing (Grundy), winner of the Gr.3 Prix d'Arenberg.

Princess Loulou has an unraced 2-year-old filly, Mesmerising (Decorated Knight), and a yearling colt by Dubawi.