Alanna

"Alanna?! Have you seen my wife?!"

- A commoner to Arya Stark

Alanna is a commoner from King's Landing.

Season 8
In the midst of the Battle of King's Landing, a panicked man shouts for his wife Alanna and asks Arya if she has seen her.

In the books
In the A Song of Ice and Fire novels, there is no character named Alanna.