Friedrich Ludwig Weidig was a German Protestant theologian, pastor, activist, teacher and journalist. Initially working as a teacher in Butzbach, he then spent a short time as a pastor in Ober-Gleen, a district of Giessen. In what is now Hesse and the Middle Rhine, he was one of the main figures of the Vormärz and a pioneer of the 1848 Revolution.

Wilhelm Martin Philipp Christian Ludwig Liebknecht was a German socialist and one of the principal founders of the Social Democratic Party of Germany (SPD). His political career was a pioneering project combining Marxist revolutionary theory with practical legal political activity. Under his leadership, the SPD grew from a tiny sect to become Germany's largest political party. He was the father of Karl Liebknecht and Theodor Liebknecht.