Complex sentence: He had also paid attention to another English girl, Elizabeth Howard, who later gave birth to a son, whose father (not Louis-Napoleon) settled property on her to support the son, via a trust whose trustee was Nathaniel Strode.
Split into simpler sentences: He had also paid attention to another English girl, Elizabeth Howard. Elizabeth later gave birth to a son, whose father (not Louis-Napoleon) settled property on her to support the son, via a trust whose trustee was Nathaniel Strode.