Jerusalem: Made the Royal City
Source: TTT
2 Samuel 5:9
So David took up residence in the fortress and called it the City of David. He built it up all the way around, from the supporting terraces inward.
2 Samuel 20:3
When David returned to his palace in Jerusalem, he took the ten concubines he had left to care for the palace, and he placed them in a house under guard. He provided for them, but he no longer slept with them. They were confined until the day of their death, living as widows.