MIESZKO LAMBERT of Poland, son of BO?ESLAW I "Chrobry" Prince [King in 1025] of Poland & his third wife Emnilde --- (990-10 May 1034). Thietmar refers to the two sons of Boleslaw as his wife Emnilde as "Miesco and another…named after his beloved lord [Otto]"[110]. The Chronicæ Polanorum names "secundus Mescho" as son of "magnus Bolezlavum"[111]. The Annales Silesiaci Compilati record the birth in 990 of "Boleslau filius Meczko"[112]. The Chronica principum Polonie records that "Boleslaus" had "filium Meziconem secundum" in 990[113]. He succeeded his father in 1025 as MIESZKO II King of Poland. He launched raids on the territory of the Ostmark in 1030, devastating hundreds of villages[114]. A German-Russian coalition defeated King Mieszko in 1030, conquered territory, divided what remained of Poland between members of the Piast dynasty and forced the king to send his crown to Germany. The country descended into civil war[115]. The necrology of Merseburg records the death "10 May" of "Lanpertus sive Misico dux poloniorum"[116].
m ([1013], [divorced]) RICHEZA, daughter of EZZO Pfalzgraf of Lotharingia & his wife Mathilde of Germany (-21 Mar 1063, bur Köln St Maria ad gradus). 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"[117]. "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…"[118]. She fled for shelter to a western monastery when Poland descended into civil war[119].
King Miesko II & his wife had four children
http://fmg.ac/Projects/MedLands/POLAND.htm#MieszkoIIdied1034