Complex sentence: Gustaf was a lifelong amateur archeologist particularly interested in Ancient Italian cultures and lately in his life a keen supporter of the Civil Rights and Black Panther movements, meeting with Martin Luther King in Stockholm as well as supporting financially the bailing out of imprisoned Panthers.
Split into simpler sentences: Gustaf was a lifelong amateur archeologist particularly interested in Ancient Italian cultures. Later in his life he was a keen supporter of the Civil Rights and Black Panther movements, meeting with Martin Luther King in Stockholm as well as supporting financially the bailing out of imprisoned Panthers.