What was the question for this implicit rationale, and corresponding answer?
Mary, Queen of Scots was the queen of Scotland whose rivalry with Elizabeth I led to her beheading. Mary, Queen of Scots son became King of England as James I. The Gunpowder plot was a 1605 plot to blow up Parliament and King James I. The Gunpowder plot failed and the conspirators were executed. King James I was succeeded by his son, Charles I of England.
The answer: no
The question: Did the Gunpowder plot eliminate Mary, Queen of Scots bloodline?