Research Notes:

The Brunwilarensis Monasterii Fundatio names the seven daughters (in order) "Richza, Adelheit, Ida, Mathild, Theophanu, Heylewig, Sophia" as children of "Herenfridus comes palatinus, qui post Ezo nominatus est" and his wife "Mathilde filia Magni Ottonis", specifying in a later passage that "Richza" was divorced from her husband and was mother of "Gazimerum". "Heinricus…Romanorum imperator augustus" confirmed the foundation of Kloster Brauweiler by charter dated 18 Jul 1051 which names "Richeza regina quondam Poleniæ…pro remedio anime sue fratrisque sui beate memorie Ottonis ducis aliorumque parentum suorum in monasterio Brunwilarensi sepultorum…per manum Heinrici palatini comitis filii patrui sui" and witnessed by "Heinricus comes palatinus, Sicco comes, Starchri comes…". She fled for shelter to a western monastery when Poland descended into civil war.

The Kalendarium of Köln Cathedral records the death “XII Kal Mai” of “Rigza regina soror Herimanni archiepiscopi”. ¹