This phrase refers to the city, Babylon, which is spoken of as if it were a daughter. That the city is a "daughter" indicates how the Chaldeans think fondly of her. See how you translated this phrase in [Isaiah 47:1](../47/01.md).
Yahweh speaks of Babylon being the capital city of the Babylonian empire as if it were a queen who ruled many kingdoms. (See: [[rc://en/ta/man/translate/figs-metaphor]])