What is kingdom leon?

As an AI language model, I am not sure of the specific Kingdom Leon you are mentioning. However, I can provide you with generic information on Kingdoms and Leon separately.

A Kingdom is a form of government where a monarch, such as a king or queen, holds supreme power over a territory, referred to as a kingdom or realm. The monarch usually inherits their position through a hereditary line or gains power through conquest or election.

Leon is a city in Spain and the capital of the province of Leon. It is located in the northwest region of Spain and has a population of around 125,000 people. Leon is known for its medieval architecture, including the Cathedral of Leon, which is a UNESCO World Heritage site. The city also has a rich history dating back to Roman times and holds several festivals throughout the year, such as the Holy Week and the Feast of San Juan y San Pedro.