Ethelinde of Northeim Peerage person ID=8823 (1050–1001) Parents Richenza of Swabia Otto of Nordheim Children Hermann I of Ravensberg Siblings Henry, Margrave of Frisia Siegfried III, Count of Boyneburg Kuno, Count of Beichlingen Mathilde von Northeim Oda von Werl Ida von Nordheim Partners Hermann II of Calvelage Welf I, Duke of Bavaria