<b>LEO CITES:
</b>
Europäische Stammtafeln, J.A. Stargardt Verlag, Marburg, Schwennicke, Detlev (Ed.), Reference: II 70, 71
Europäische Stammtafeln, Band I, Frank Baron Freytag von Loringhoven, 1975, Isenburg, W. K. Prinz von, Reference: Page 5
Les seize quartiers des Reines et Imperatrices Francaises, 1977, Saillot, Jacques, Reference: 235
Debrett's Kings and Queens of Europe, London, 1988 , Williamson, David, Reference: 39
Pere el Gran, three volumes, Barcelona, 1950, 52, 56 , Soldevilla, F., Reference: date of birth
Europäische Stammtafeln, Band II, Frank Baron Freytag von Loringhoven, 1975, Isenburg, W. K. Prinz von, Reference: page 45
