|The title of this article is conjecture based on information revealed in the A Song of Ice and Fire novels or related material and may be subject to change.
The Starry Sept is a large sept in Oldtown in the Reach. It was the religious center of the Faith of the Seven for many centuries, until the High Septon relocated his seat to the Great Sept of Baelor in King's Landing. It became the de facto headquarters of the Faith again after Cersei Lannister destroyed the Great Sept with wildfire.
Stories say that during the War of Conquest, the High Septon at the time locked himself inside the Starry Sept for seven days, until the Crone lifted her golden lamp and showed him the proper course of action. He crowned Aegon I Targaryen as Lord of the Seven Kingdoms while the Faith Militant would support Aegon's rule.
In the books
In the A Song of Ice and Fire novels, the Starry Sept is the original headquarters of the Faith of the Seven, and was the seat of the High Septon for thousands of years. It was only about a century and a half prior to the War of the Five Kings that King Baelor Targaryen ordered construction of the Great Sept in King's Landing, causing the Faith to relocate its headquarters from Oldtown to the new capital city. Some say Baelor did this as a gift to the Faith, but others point out that keeping the Faith's ruling hierarchy close to the Targaryen's seat of secular power allowed the royal dynasty to dominate them. Indeed, by the reign of Robert Baratheon, then the Lannisters' puppet regime under Joffrey, the Lannisters essentially appoint and replace High Septons at their discretion, by just bribing or intimidating the Most Devout into electing the candidates they prefer. Both interpretations have an element of truth to them: Baelor was so obsessed with the Faith that he would genuinely have seen his act as a gift, but his advisors and practically all later rulers would have been happy to take advantage.
The Starry Sept has black marble walls and arched windows.
Old Oak · Red Lake · Goldengrove · Bitterbridge · Tumbleton · Grassy Vale · Cider Hall · Ashford · Horn Hill · Brightwater Keep · Bandallon · Honeyholt · Oldtown (The Citadel · The Hightower · Starry Sept) · Uplands · Blackcrown · Three Towers · Sunflower Hall · The Arbor