Original: Mary Stuart (8 December 1542 - 8 February 1587) was Queen regnant of Scotland from 14 December 1542 to 24 July 1567.
Simplified: Mary, Queen of Scots (8 December 1542 â "8 February 1587), was Queen of Scotland from 14 December 1542 until 24 July 1567, when she was forced to give up her kingdom.