France
About 18 years.
From 1774 until 1792.
No, he didn't, but Louis XVI did in 1789
Louis XVI (the sixteenth / seize)
From 1774 until 1793, so 19 years.
No, Louis xvi is not single.
Louis XV was the grandfather of Louis XVI
it wasn't really a government. it was divine right - the thought that your power to rule was given by god. if anything, the government he has was probably a constitutional monarchy
Louis XVI never had a grandchild.
Louis XVI of France.
Louis XVI, who was beheaded along with his son, the [presumptive] Louis XVII. When the monarchy was restored, Louis XVIII became king.