Magnus I, Duke of Mecklenburg (1345 – 1 September 1384) was

Duke of Mecklenburg This list of dukes and grand dukes of Mecklenburg dates from the origins of the Germany, German princely state of Mecklenburg's royal house in the High Middle Ages to the monarchy's abolition at the end of World War I. Strictly speaking, Mecklen ...

from 1383 until his death. Magnus was the third son of Duke Albert II of Mecklenburg and his wife

Euphemia of Sweden Euphemia of Sweden ( Swedish: ''Eufemia Eriksdotter''; 1317 – 16 June 1370) was a Swedish princess. She was Duchess consort of Mecklenburg, heiress of Sweden and of Norway, and mother of King Albert of Sweden. (c. 1338-1412) . Biography E ...

, the sister of the King

Magnus IV of Sweden Magnus Eriksson (April or May 1316 – 1 December 1374) was King of Sweden from 1319 to 1364, King of Norway as Magnus VII from 1319 to 1355, and ruler of Scania from 1332 to 1360. By adversaries he has been called ''Magnus Smek'' (). Medi ...

. Sometime after 1362, he married Elizabeth of Pomerania-Wolgast, daughter of

Barnim IV, Duke of Pomerania Barnim IV of Pomerania (1325 – 22 August 1365) was a Duke of Pomerania-Wolgast-Rügen. Life He was the second son of Duke Wartislaw IV of Pomerania-Wolgast and the brother of Bogislaw V and Wartislaw V. He married Sophie of Werle (13 ...

. Magnus had two children: * John IV, Regent of Mecklenburg from 1384 to 1395 and co-regent from 1395 to 1422 * Euphemia (d. 16 October 1417); : married on 18 October 1397 with Lord Balthasar of Werle After the death of his brother Henry III in 1383, he ruled Mecklenburg jointly with Henry's son Albert IV until his own death in 1384.

Sources

* House of Mecklenburg Dukes of Mecklenburg-Schwerin 1345 births 1384 deaths {{Germany-noble-stub