Ronnel Arryn

Alys Arryn, is an unseen character in Game of Thrones. He is deceased when the events of the series begin and is not expected to appear in the series.

Alys was the daughter of Jasper Arryn, the Head of House Arryn and the Lord of the Eyrie. She had two brothers Jon and Ronnel.

In the books
In the Song of Ice and Fire novels, Ronnel's family was unchanged.