Mary the Queen of Scots. Also known as Mary I and born as Mary Stewart.
francis joseph
Louis XIV
Her father died when she was 6 days old leaving her the only heir to the throne.
She became queen when her father died being the eldest child at age 18 she inherited the throne.
Queen Victoria's parents did not rule. Her father's three older brothers died without legitimate issue, so when her father passed away, she inherited the throne at age 18.
Louis XVI was nineteen years old when he took the throne. And Was executed when he was 39 years of age.
He didn't become King in 1804, he became King in 1774 when his grandfather (Louis XV) died and he inherited the throne.
Son of Henry VIII and brother of Mary and Elizabeth I he was named king at age 9, and died at age 16, when he hand the throne to Lady Jane Gray ( was queen for 9 days ). Who was later killed by Mary I who took over the throne.
Elizabeth I ascended the throne on November 17, 1558, at the age of 25. She inherited the throne of England from her half-sister, Queen Mary I. Elizabeth II ascended to the thrones of the Commonwealth Realms on February 6, 1952, at age 25, upon the death of her father, King George VI (originally named Albert, for his great-grandfather).
The area now known as Scotland was first inhabited around 14,000 years ago at the end of the last Ice Age. (There may have been earlier inhabitants, but if so they left no trace.) It truly became Scotland, the land of the Scots, with the arrival of the Scoti or Scotti, Gaelic-speaking raiders from Ireland, in the fifth century A.D. Prior to that time the land was inhabited by Picts and Britons and known (at least to the Romans) as Caledonia.
It turns out that 16 is the age of consent in Scotland. Wikipedia has an article and a link is provided.
he came to the throne around age 9