Aemma Arryn is a fictional character from the book series "A Song of Ice and Fire" by George R.R. Martin. She is a member of House Arryn, a noble family in the realm of Westeros. Aemma is known for her beauty and grace, and she is the daughter of Prince Aemon Targaryen and Princess Naerys Targaryen. In the story, Aemma becomes the wife of King Viserys I Targaryen and is the mother of several children, including Prince Aegon and Princess Rhaenyra. Her character plays a significant role in the political dynamics of the Targaryen family during a tumultuous period in Westerosi history.