an Entity references as follows:
Friedrich Wilhelm Ludwig Leichhardt (German pronunciation: [ˈfʁiːdʁɪç 'vɪlhɛlm 'lu:tvɪç 'laɪçhaːʁt]), known as Ludwig Leichhardt, (23 October 1813 – c. 1848) was a German explorer and naturalist, most famous for his exploration of northern and central Australia.