Buddha narrates in chapter 18 his past life where he gave his body to a starving tigress. He mentions the karmic ties of the major persons around him then:
I, the Tathagata Shakyamuni was formerly Mahasattva, Son of King Maharatha who made the tigress well.
Shuddhodana, the great king was the king called Maharatha, and Queen Maya was the sublime queen. Mahapranada became Maitreya. Likewise, Prince Mahadeva was the youthful Manjushri. The tigress was Mahaprajapati; the five bhikshus were her five cubs.
When Mahasattva gave the tigress his body, he made this altruistic wish: “By the merit of completely giving my body, may I, in future times for eons utterly beyond thought, perform the deeds of buddhas for sentient beings.”