Astapor is the southernnmost of the three great city-states of Slaver's Bay and a noted stopping point for ships bound from Qarth to the Free Cities and Westeros. Astapor is home of the infamous Unsullied, eunuch slave-soldiers. Astapor's sigil, like that of the other cities of Slaver's Bay, is that of the harpy, the ancient symbol of the Ghiscari Empire, of which Astapor was once part. Though culturally still identifying itself as Ghiscari, Astapor is an independent city-state and is not officially aligned with the resurgent nation of Ghiscar to the south.
The flag of Astapor bears the Ghiscari harpy holding between its talon a chain with open manacles on both ends.
While in Qarth, Ser Jorah Mormont informs Daenerys Targaryen that he has procured transport on a ship bound for Astapor. However, Daenerys refuses to leave without having first recovered her dragons from the House of the Undying.
Daenerys is convinced to travel to Astapor to procure the services of the eunuch slave-army known as the Unsullied. In Astapor she is nearly assassinated by the use of a manticore, but is saved by Ser Barristan Selmy, who pledges his service to her.
Daenerys later visits the Walk of Punishment, where slaves who have committed transgressions are tortured and put on display as a warning to others. Daenerys attempts to comfort a slave who has been condemned to death with water. He instead begs her to be allowed to die.
After purchasing the entirety of Unsullied of Astapor, as well as the slave-boys still in training to become Unsullied, Daenerys double crosses the Good Masters. Under her command, the Unsullied put all slaver masters in the city to the sword, sparing only the children, and liberate the slaves, while Drogon, Viserion, and Rhaegal are also unleashed.
- Kraznys mo Nakloz, one of the Good Masters of Astapor. Burned alive by the dragon Drogon during the Sack of Astapor.
In the books
In the A Song of Ice and Fire novels, Astapor, like its sister-cities of Yunkai and Meereen, is culturally and historically Ghiscari in origin, until the defeat of the old Ghiscari Empire by Valyria thousands of years ago. Following the Doom of Valyria, Astapor, Yunkai, and Meereen have reestablished their Ghiscari traditions, but have not joined the resurgent Ghiscari nation based at New Ghis.
Astapor is located at the mouth of the Worm River. It is ruled by the Good Masters, slave-owners and traders who have become immensely wealthy. They live on large, stepped pyramids similar to those in Meereen, but not as large. It is called "the Red City" for the red brick its buildings are made of. The city contains fighting pits and slave markets.
Slaves who displease their masters are tortured and displayed in the Plaza of Punishment, which is the first place a new slave brought into the city sees.
The trade of slaves, is usually conducted in the Plaza of Pride, an open market where the slavers take their customers to view their purchases. In the centre of the plaza stands a red brick fountain with the a hammered bronze version of the Astapori harpy standing in its center.
Of the three slaver-cities, Astapor is bigger than Yunkai, but Meereen is has a bigger population than Astapor and Yunkai put together. The population of Astapor is not as big as that of Qarth or Pentos.
- Astapor at A Wiki of Ice and Fire (MAJOR spoilers from the books)