The Ancestral Hall is a Tier 1 government building in Civilization VI: Rise and Fall. It is built in the Government Plaza district and requires a Tier 1 government (Autocracy, Classical Republic, or Oligarchy).
The Ancestral Hall is a huge help if you're building a wide empire. With added Production toward Settlers and a free Builder in newly-founded cities, you'll be able to expand your empire and develop your land with ease. The Government Plaza is not always prioritized in the early game compared to other districts like Campuses, Commercial Hubs or Harbors; however, if you want to pick the Ancestral Hall as your Tier 1 government building, you need to get it as soon as possible. There is nothing worse than getting this building so late that there is no open space nearby to settle. Compared to the Audience Chamber and Warlord's Throne, this building has a very narrow opportunity window under the default ruleset.
Civilopedia entry Edit
The Ancestral Hall is a building associated with veneration of ancestors, and the best examples of these come to us from China (although variants on the concept have been built elsewhere throughout history). They exist to serve as a place where the living might demonstrate their respect and honor for the previous generations in their lineage, and to conduct important familial ceremonies, such as marriage and funerals.
As the seat of a lineage, they serve as an important locus in the identity of a family. No matter how far away a family may move, they know that they can return to their ancestral hall and reconnect in an important way to their place of origin. This grounding of identity is a source of strength for these people, making them feel like part of an unbroken chain of human effort and achievement.