Minisa Tully

Minisa Tully is an unseen character in Game of Thrones. She is deceased when the events of the series begin. Minisa Tully is the mother of major character Catelyn Stark and recurring character Lysa Arryn.

Background
Minisa was born into House Whent and married Hoster Tully, the head of House Tully and Lord of Riverrun. They had two daughters together Catleyn and Lysa.

In the books
In the Song of Ice and Fire novels Minisa is similarly deceased when events begin.