Question: Who is Mariota, Countess Of Ross's father-in-law?
Sentence (from "Donald of Islay, Lord of the Isles"): The Lordship of the Isles was based in and around the Scottish west-coast island of Islay, but under Donald's father had come to include many of the other islands off the west coast of Scotland, as well as Morvern, Garmoran, Lochaber, Kintyre and Knapdale on the mainland.
Relevant evidence: No