Complex sentence: Having become the ward of the Earl of Suffolk, she married his youngest son, Charles Howard, in 1706, hoping to provide for her siblings and they had one son, Henry Howard, 10th Earl of Suffolk.
Split into simpler sentences: Having become the ward of the Earl of Suffolk, she married his youngest son, Charles Howard, in 1706, hoping to provide for her siblings. They had one son, Henry Howard, 10th Earl of Suffolk.