John I, Count of Nassau-Weilburg

John I (* 1309, † September 20, 1371 in Weilburg ) was from 1355 to 1371, Count of Nassau- Weilburg. He founded the elder branch of Nassau -Weilburg.

Life

John was the second son of Count Gerlach I of Nassau from the walramischen branch and Agnes of Hesse a daughter of Henry I, Landgrave of Hesse. Already in 1344, during the lifetime of his father, he joined forces with his older brother Adolf to the rule. The brothers divided their property in 1355, where Johann Weilburg, Neuweilnau, Freienfels, Gräfenhausen, and the Nassau share of Cleeberg received. Johann was the founder of the line of Nassau -Weilburg. By his first marriage to Gertrude of Merenberg, he earned Merenberg and Gleiberg. The second marriage to Joan of Saarbrücken was the basis for the inheritance of the county took place in 1381 in Saarbrücken. After his death, in 1371, his son Philip succeeded him as Count of Nassau -Weilburg.

Marriages and descendants

Johann was married twice. He married 1333 Gertrude († October 6, 1350 ), the heiress of Hartrad VI. Merenberg and Gleiberg. With her he had a daughter he Reinhard II von Westerburg (* 1354, † 1421 ) 1340 made ​​by Runkel - fiancee Westerburg, but still died in childhood. Reinhard II married in their place 1373 Johanns niece Catherine of Nassau- Wiesbaden- Idstein († 1403 ).

His second wife he married in 1353 Joanna the heiress of Count Johann II of Saarbrücken. With her he had seven children:

• Johann († October 6, 1365 )
• Philip (* 1368, † 1429), the father of Nassau -Weilburg followed
• Johanna (* 1362, † 1383 ) ∞ Hermann II, Landgrave of Hesse
• Johannette († 1365 )
• Agnes († 1401 ) ∞ Simon III. Alarm Clock, Count of Zweibrücken- Bitsch († 1401 )
• Scholars Cute († 1436 ) ∞ ( 1384 ) Heinrich X of Homburg ( † 1409 ) ∞ ( 1414) Otto of Brunswick- Grubenhagen († 1452 )
• Margarete († 1427), ∞ Frederick III. , Count of Veldenz