After the death of Pippin III. the short (714-768) shared his sons Karlmann (751-771) and Charles (742-814) the throne. After the early death of his brother, Charles became the sole ruler of the Frankish kingdom in 771. In numerous battles he extended his empire as the largest since the Roman Empire over today France. Belgium. Germany. Austria and the Switzerland and laid the foundation for a Christian Occident. At Christmas of the year 800, he settled by Pope Leo III. (750-816) in Rome to crown the Roman Emperor. In addition to trade, commerce and agriculture, he promoted cultural development and the sciences and also created a comprehensive, legal order with, among other things wine law Matters.