Which two european countries have a constitutional monarchy as their political system

Spain and the United Kingdom

Explanation:

There are actually several European countries today that are constitutional monarchies, but the largest and most well-known are Spain and the United Kingdom. Both nations have a monarch that is the head of state, but his/her role is largely symbolic.

The functioning head of government is the prime minister, and laws are proposed and ratified by legislative bodies. Both Spain and the United Kingdom also have supreme courts that serve as a counterbalance and ensure compliance with the law.