Who is Fiona MacGregor from Rebellion and what is their importance?

Fiona MacGregor is Ian's wife and the mother of Serena, Gwen, Coll and Malcolm. She is described as a strong, stable force in her family, who is always calm, capable and loving. Fiona is a compassionate mother and wife, who understands the fiery nature of her daughter, Serena. She grieves deeply when Ian dies but goes on with courage and strength, as much to set an example for her children as anything.