Nielsen Hayden genealogy
Descendants of Margareta von Mecklenburg
![Female](img/tng_female.gif)
Father: Heinrich Burwin II
(Abt 1170 - 5 Dec 1226)
![Locate Person in Chart, Link to Ancestor Chart & Descendant Chart](img/rrtextplus_locate.gif)
Mother: Kristina
( - Aft 20 May 1248)
![Locate Person in Chart, Link to Ancestor Chart & Descendant Chart](img/rrtextplus_locate.gif)
Margareta von Mecklenburg ( - Aft 23 Oct 1274)
       
Gerard IV of Holstein
( - 1317)(m. Between 30 Jul 1313 and 21 Oct 1313)
![Collapse](img/tng_minus.gif)
![Locate Person in Chart, Link to Ancestor Chart & Descendant Chart](img/rrtextplus_locate.gif)
           └─ Ingeborg of Holstein
(Between 1314 and 1317 - Aft 1342) =>
![Locate Person in Chart, Link to Ancestor Chart & Descendant Chart](img/rrtextplus_locate.gif)
            + Konrad I of Oldenburg
( - Bef 9 Feb 1348)(m. Bef 13 May 1339)
![Locate Person in Chart, Link to Ancestor Chart & Descendant Chart](img/rrtextplus_locate.gif)