Complex sentence: The Albertinian archduke Albert V of Austria was elected King of the Romans in 1438, nevertheless he died one year later and the line finally became extinct by the death of his son Ladislaus the Posthumous in 1457.
Split into simpler sentences: The Albertinian archduke Albert V of Austria was elected King of the Romans in 1438. Nevertheless, he died one year later and the line finally became extinct by the death of his son Ladislaus the Posthumous in 1457.