Complex sentence: But Princess Zinaida, instead she chosed Count Felix Sumarokov-Elston, he was the great grandson of Field Marshal Mikhail Kutuzov and grandson of King Frederick William IV of Prussia.
Split into simpler sentences: But Princess Zinaida, instead she chosed Count Felix Sumarokov-Elston. He was the great grandson of Field Marshal Mikhail Kutuzov and grandson of King Frederick William IV of Prussia.