Elizabeth R (TV Series 1971) | Horrible Conspiracies (Episode 4)

Episode 4: As long as the imprisoned Mary, Queen of Scots lives, she is the focus of plotters and revolutionaries. Despite a clampdown against conspiring Roman Catholics, Mary (Elizabeth's prisoner for nearly twenty years), inspires an attempt to overthrow Elizabeth. Elizabeth fears Mary's death will condemn her in the eyes of God.

Episode 5: https://rumble.com/v70whuo-elizabeth-r-tv-series-1971-the-enterprise-of-england-episode-5.html