Aminah bint Wahb

The caretakers of the prophet ﷺ are,

His mother Aminah bint Wahb, Thuwaybah, Halimah as-Sa'diyyah, ash-Shayma' (who was the daughter of Halimah as-Sa'diyyah, and thus the sister of the Prophet through breastfeeding), and the noble Companion Umm Ayman Barakah from Ethiopia.

[Ibn al Qayyim mentioned this in Zad al Ma'ad]