The title "Queen of Scotland" refers to the female monarch who ruled over Scotland. Historically, this title has been held by several notable figures, including Mary, Queen of Scots, who reigned in the 16th century. The role of the queen involved overseeing the kingdom, making political decisions, and representing Scotland in diplomatic matters. The monarchy in Scotland has a rich history, with various dynasties and changes in power. The union of the crowns in 1603 led to the establishment of the Kingdom of Great Britain, where the title evolved. Today, the current monarch, King Charles III, represents Scotland as part of the broader British monarchy.