thank you for your message. Now I am really sure that I can help you. Note: The name Schafhausen indicates a Cologne relationship. Schafhausen ist the name of one of the leading Cologne private banking houses of the 19th century. One - I think: Friedrich - Richar(t)z was at that time owner of a leading Cologne trading company. When he died - as a bachelor! - his heritage was basis for one of (till today) Cologne's most famous museums, the so called "Wallraff Richartz Museum." Richartz' statue, a fine monument, is situated some 300 yards near the world famous cathedral.
Please give me a little bit of time to check the connections - just till Easter Sunday.