|Title||Queen of the Three Sisters|
|Allegiance|| House Sunderland|
|Book(s)||The World of Ice & Fire (mentioned)|
During the War of Conquest, the Sistermen took advantage of the chaos and rebelled against the rule of House Arryn, installing Marla as their Queen. However, she was deposed when a Braavosi fleet, hired by House Stark at the behest of Aegon the Conqueror, approached the Three Sisters. Marla's brother bent the knee while Queen Marla ended her days as a silent sister.
- The World of Ice & Fire, The Vale.