John I, Marquis of Namur
John I of Dampierre (* 1267, † January 31, 1330 ) was Count of Namur 1305-1330 He was the son of Guy of Dampierre, Count of Flanders and Margrave of Namur, and Isabella of Luxembourg. .
In March 1297, his parents, the government of the county of Namur came from him, with Guy of Dampierre, however, until his death retained the title of Marquis of Namur, which is why Johann hitherto contented himself with a count of Namur. From 1296 to 1298 he was like his father in Paris held. In 1300 he joined with several cities around Liege a contract by which this placed themselves under his protection. When his father was fixed again in Paris, he moved in with his brother Guido against France, which was defeated in the Battle of the Spurs in 1302, but in 1304 won the Battle of Mons -en- Pévèle. The peace treaty was concluded only in 1307.
1307 he made the Count William of Hainault fealty for the County of Namur and the rule Poilvache. 1308 brought Charles of Valois claim to the Margraviate as husband of Catherine de Courtenay, the granddaughter of Baldwin II of Courtenay, the former Margrave of Namur, but King Philip IV of France decided the question in favor of John.
When Johann accompanied the Emperor Henry VII on his Italian campaign, had to deal with a revolt which had broken out due to high taxes, and could only be 1313 suppressed with the help of Count Arnold V. von Looz his second wife Marie of Artois. 1314 gave him the imperial dominion over Cambrai, he took possession of it, which he put down the officials of the bishop, but was excommunicated also to 1317. From 1318 to 1322 he finally went to war against the Bishop of Liege.
Family
Johann married in 1308 in her first marriage, Margaret of Clermont (* 1289, † 1309), daughter of Robert of France, Count of Clermont -en- Beauvaisis, and Beatrice of Burgundy, Lady of Bourbon; Margaret died the following year, the marriage remained childless.
His second wife he married in 1309 Marie d'Artois (* 1291, † 1365 ), daughter of Philippe d' Artois, Seigneur de Conches -en- Ouche, and Blanche of Brittany. Their children were: