Complex sentence: Margaretha Charlotta Heijkensköld (1781--1834) was a Swedish traveller and a noblewoman who aroused a lot of attention from her contemporaries by her journeys.
Split into simpler sentences: Margaretha Charlotta Heijkensköld (1781--1834), was a Swedish traveller and a noblewoman. She attracted a lot of attention from her contemporaries by her journeys.