Ruler of France
He assumed control of the national budget and carefully kept track of the state and his treasury, he even managed to reduced taxes.
He didn't go to war very often, but when he did he claimed land for France.
When Spain's ruler died the land went to the heir but at the time was to young to rule, so Louis took control of their government and when the time came returned it to the heir.
Although he was good at managing the treasury, he was selfish. He had a giant extravagant place built which crippled the economy.
When he became ruler he destroyed the normal traditional way of ruling and made France a monarchy.
He didn't like listening to others and wouldn't take advice, he did what he thought was best.