H.F. Macco, Geschichte und Genealogie der Familien Peltzer, Aachen 1901, S. 204
B. Koerner / C. Welcker, Nassauisches Geschlechterbuch 1 (DGB 49), Görlitz 1926, S. 222
R. Steimel, Mit Köln versippt I, Köln 1955, Tafel 2
__ | ____________________________|__ | Christoph August LADE | __ | (1739-1815)x1776 | | | |____________________________|__ | Friedrich August LADE | __ | (1783-1866)x1812 | | | | Johann Philipp RITZEL |__ | | | (1706-....)x1754 | | Juliana Margaretha RITZEL | __ | (1754-1826)x1776 | | | | Margaretha Elisabeth WEIß |__ | x1754 |--Wilhelmina LADE | (1827-1895)x1844 __ | | | ____________________________|__ | | | ____________________________| __ | | | | | | |____________________________|__ | | | Wilhelmina Ulrike SIEGEN | __ (1785-1827)x1812 | | | ____________________________|__ | | |____________________________| __ | | |____________________________|__