Bintanath was likely born during the reign of her grandfather Seti I. Her mother was Isetnofret, one of the two most prominent wives of Ramesses II.
Bintanath kemungkinan besar lahir di masa pemerintahan kakeknya, Seti I. Ibundanya adalah Isetnofret, salah satu dari dua istri Ramses II yang paling menonjol.