County of Beaumont-sur-Oise

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The county of Beaumont-sur-Oise in what is now the Val-d'Oise department north of Paris is actually called the county of Beaumont; the addition is only an extension of the name of the main town Beaumont-sur-Oise , but also serves to distinguish the county of Beaumont-sur-Oise from other fiefs, especially the county of Beaumont-le-Roger , especially since both of them owned the same at times Person were.

The county arose as a rule of vassal of the Capetian . A first Earl of Beaumont appeared in 1022, and the county remained in the possession of his descendants until 1223. Count Mathieu I. had to King Ludwig VI. subject, but then became its chamberlain (chambrier).

In 1223 Thibaut de Beaumont, a cousin of the last count and heir to the county since 1222, sold the property to King Philip II Augustus . In 1284 King Philip III. the county to his third son, Ludwig , the later (1298) Count of Évreux and Beaumont-le-Roger . In 1328 Beaumont returned in connection with the settlement of the claims of the daughter of Louis X , Johanna , to the crown: Johanna received the Kingdom of Navarre , renounced the French crown, and her future husband Philipp von Évreux , the son of Louis von Évreux, renounced Beaumont-sur-Oise.

King John II gave the county to his daughter Johanna, who married Charles the Bad , King of Navarre and son of Philip of Évreux, in 1353 . As early as 1354, the Beaumont-sur-Oise crown was returned by exchange.

The next owner was Philip of Valois , since 1344 Duke of Orléans and also Count of Beaumont-le-Roger. After his death in 1375, Beaumont-sur-Oise was in 1392 together with the Duchy of Orléans to Ludwig , the younger brother of King Charles VI. , given. Beaumont-sur-Oise was inherited by his descendants like the Duchy of Orléans and came with the accession of Louis XII. 1498 returned to the crown.

Counts of Beaumont-sur-Oise

House Beaumont-sur-Oise

  • Ivo I., 1022/28 comes Bellomontensis, † probably before 1036
  • Ivo II, probably his son, † 1059
  • Josfredus, his son, † after 1068
  • Ivo III, his brother, 1070/81 Count of Beaumont, † after 1083
  • Mathieu I , his son, † 1155, 1086 Count of Beaumont, 1137 Chambrier de France
  • Mathieu II , his son, attested in 1110/74, 1151 Count of Beaumont,
    • Hugues I, whose brother, attested in 1139/89, was Vice Count of Beaumont
  • Mathieu III. , Son of Mathieu II, † 1208, 1177 Count of Beaumont, 1180/1208 Chambrier de France; ∞ around 1175 Eleanor, 1183 Countess of Vermandois , Valois and Saint-Quentin , daughter of Count Rudolf I ( House of France-Vermandois )
  • Jean , his brother, † 1222, 1209 Count of Beaumont
    • Thibaut de Beaumont, grandson of Hugues I, sold the county to King Philip II Augustus in 1223 .

Other families

  • Ludwig , Count of Beaumont-sur-Oise in 1284, Count of Évreux and Lord of Beaumont-le-Roger in 1298, † 1319
  • Philip of Évreux , 1319 Count of Évreux etc., 1328 King of Navarre
  • Joan of France, Countess of Beaumont-sur-Oise, exchanged in 1354
  • Philip of Valois , 1344 Duke of Orléans and Count of Beaumont-le-Roger, Count of Beaumont-sur-Oise, † 1375
  • Louis of Valois , † 1407, 1392 Duke of Orléans, Count of Beaumont-sur-Oise
  • Karl , † 1466, 1407 Duke of Orléans, Count of Beaumont-sur-Oise etc.
  • Ludwig , † 1515, 1466 Duke of Orléans, Count of Beaumont-sur-Oise etc., 1498 as Louis XII. King of France

House Le Plessis-Liancourt

  • Charles du Plessis († 1620), Seigneur de Liancourt , Marquis de Guercheville (uxor nomine), Comte de Beaumont-sur-Oise
  • Roger du Plessis , Duc de La Rocheguyon, Seigneur de Liancourt, Marquis de Guercheville, Comte de Beaumont-sur-Oise, Pair de France