I've found one child in Medlands:
WIDUKIND (-7 Jan 810). The Royal Frankish Annals record that Widukind rebelled against the authority of Charles I King of the Franks, who had invaded and subdued Saxony, and fled to Denmark ["Nordmannia"] in 777[15]. The Annales Laurissenses state that "Widochindis rebellis" was the only Saxon who did not submit to the Franks in 777[16]. Widukind incited another revolt in 778 while King Charles was campaigning in Spain, but was defeated near Leisa on the river Eder[17]. The Annales Laurissenses record that Charles I King of the Franks sent his missus "Amelwinum" to besiege "Widochindum et Abbionem" in 785, that they surrendered and were baptised at "Attiniacum villa"[18]. Adam of Bremen records that "Widichind" surrendered and accepted baptism in 785[19]. m ([775]) GEVA, sister of SIGURD first "King of Haithabu", daughter of --- ([755]-). This marriage is shown in Europäische Stammtafeln[20] in the outline genealogy of a family referred to as "Kings of Haithabu", doubts about which are discussed in chapter 1 of the document DENMARK KINGS. The primary source on which it is based has not been identified. Widukind & his wife had one child:
a) WICHBERT (-after 25 Dec 834). "Wibreht" is named as son of Widukind in the Translatio Sancti Alexandri[21]. The Historia Angariensis records that “Wigbertus filius Witikindi” built “ecclesiam apud Waltingohusen”, with the support of “coniuge Godrada”, dated 823[22]. “Wibrathti...ac filius eius Waldbertus” donated property to Utrecht St Marten by charter dated 25 Dec 834[23]. m ODRAD [Godrada], daughter of ---. She is named with her husband in the charter dated 17 Oct 872 under which [her son] “Waltbertus comes...et coniux mea Altburg” built Wildeshausen church, for the souls of “genitoris genitricisque mee...Wiberti et Odrad”[24]. The Historia Angariensis records that “Wigbertus filius Witikindi” built “ecclesiam apud Waltingohusen”, with the support of “coniuge Godrada”, dated 823[25]. http://fmg.ac/Projects/MedLands/SAXONY.htm