Robuta

https://www.uni-due.de/geschichte/herrschaftslegitimation/teilprojekt_heinemann.shtml

https://darwin-online.org.uk/content/contentblock?basepage=1&itemID=F1065.1&hitpage=119&viewtype=side

https://darwin-online.org.uk/content/contentblock?basepage=1&itemID=F1065.1&hitpage=151&viewtype=side

https://darwin-online.org.uk/content/contentblock?basepage=1&itemID=F1065.1&hitpage=199&viewtype=side