Robert III, King of Scots is your 15th great uncle.
You
→ Rosalie Frances Duffy
your mother → Veronica Eugene Rosalie Duffy
her mother → Helen Ogilvie Trail Fairbridge
her mother → Rhys Seymour Fairbridge
her father → Francis Seymour Fairbridge
his father → Dr. James William Fairbridge
his father → Elizabeth Fairbridge
his mother → Colonel Thomas Traill of Holland
her father → George Traill of Westness
his father → Alexander Traill of Blebo
his father → John Traill of Blebo
his father → Barbara Trale
his mother → James Logan
her father → John Logan of Grogar, 2nd of Restalrig
his father → Simon Logan, of Flemington
his father → Katherine Stewart, Princess of Scots
his mother → Robert III, King of Scots
her brother