Complex sentence: After the fall of the Roman Empire in 476, King Gundobad allied with the mighty Frankish king Clovis I against threatening Theoderic the Great, he thereby was able to secure the Burgundian acquisitions, leaving the "Lex Burgundionum", an Early Germanic law code.
Split into simpler sentences: After the fall of the Roman Empire in 476, King Gundobad allied with the mighty Frankish king Clovis I against the threat of Theoderic the Great. He was thereby able to secure the Burgundian acquisitions, leaving the "Lex Burgundionum", an Early Germanic law code.