The practice is most likely to have been supported by conservatives in Europe in 1800 was a monarch made key political decisions based on input from advisors.
What is a monarch?
Monarch is referred to as a system where a single person becomes the head of the country and rules over there and makes the decision to implement on the citizens.
Most of Europe remained ruled by kings during the 1800s. Conservatives wanted to preserve the monarchy at the time. So, given the choices, conservatives are more inclined to support preserving the monarchy while consulting advisors.
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