In 1900 every country in Europe was a monarchy, save for three: France, Switzerland and San Marino. By 2000 most had become republics, with the exceptions being Denmark, Norway, Sweden, Belgium, the Netherlands, Luxembourg, the UK and Spain. These monarchies have survived partly for geopolitical reasons, but also by being quick to reject royals who step out of line. So what are the lessons King Charles could learn from these other monarchies?
