Nielsen Hayden genealogy

Otton III de Trazegnies

Male Abt 1198 - 1242  (~ 43 years)

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Generation: 1

  1. 1.  Otton III de Trazegnies was born about 1198 (son of Gilles II de Trazegnies and Aleid van Boulaere); died between 12 Aug 1241 and Apr 1242.


    Lord of Braine-le-Ch√Ęteau.

    Otton married Mathilde de Hacquegnies before 1222. Mathilde died before Aug 1230. [Group Sheet] [Family Chart]

    1. Gilles III de Trazegnies died about 13 Oct 1253.

Generation: 2

  1. 2.  Gilles II de Trazegnies (son of Otton II de Trazegnies de Blicquy and Mathilde de Neyghem); died in 1204.


    Constable of Flanders.

    "As constable of Flanders, Gilles accompanied Baudouin VI-IX, Graaf van Henegouwen to the Fourth Crusade. However he chose a separate route, crossing France and Italy. Arriving in Piacenza, he found Baudouin's messengers who pressed him to join Baudouin in Venice. However Gilles preferred to embark at Brindisi and go directly to the Holy Land. The crusader and chronicler Geoffroi I de Villehardouin describes Gilles' decision as a defection; it was poorly received by Baudouin and especially by Enrico Dandolo, the doge of Venice, who used it to refuse credit to the Crusaders and demanded of them that they pay the Venetian fleet in kind by capturing the Byzantine city of Zara. The defection of the Constable of Flanders was one of the first steps down the road that eventually led to the capture of Constantinople by the Crusaders in 1204, and to Baudouin becoming emperor of Constantinople that year. Gilles was killed in 1204 by the Turkomans in a battle at Riblah on the Orontes as he was going to the aid of Boemund IV, prince of Antioch, probably against Leo I, king of Armenia." [Leo van de Pas]

    Gilles married Aleid van Boulaere in 1197. [Group Sheet] [Family Chart]

  2. 3.  Aleid van Boulaere (daughter of Nikolaus van Boulaere and Ada de Roeulx).


    Heiress of Boulaere.

    1. 1. Otton III de Trazegnies was born about 1198; died between 12 Aug 1241 and Apr 1242.

Generation: 3

  1. 4.  Otton II de Trazegnies de Blicquy was born about 1150 (son of Gilles I de Blicquy); died about 1192.


    "In 1186 Otton went on pilgrimage to the Holy Land, and in 1187 he brought back a piece purporting to be of the True Cross, that he offered to the abbey of Floreffe (the splendid reliquary made for it is in the Louvre. Another tradition claims that he brought back with him the design for windmills. In 1189 he left on crusade (probably with Philippe, count of Flanders) to recapture Jerusalem, which had been taken by Saladin after the Battle of Hattin in 1187. He fought between Jaffa and Ascalon on 6 November 1291 and was helped by Richard the Lionheart himself. In April 1192 he was appointed, with Henri II, comte de Champagne and Guillaume Cayeux, to offer the crown of Jerusalem to Conrad, marchese de Monferrato. However Conrad was assassinated on 26 April, and on 5 May Otton attended the wedding of Conrad's widow Isabella d'Anjou, queen of Jerusalem, and Henri II, comte de Champagne, who became king of Jerusalem by right of his wife. Otton died later that year, probably killed in the siege of Acre." [Leo van de Pas, citation details below.]

    Otton married Mathilde de Neyghem about 1176. Mathilde died before 1219. [Group Sheet] [Family Chart]

  2. 5.  Mathilde de Neyghem died before 1219.
    1. Elisabeth de Trazegnies
    2. 2. Gilles II de Trazegnies died in 1204.

  3. 6.  Nikolaus van Boulaere

    Nikolaus married Ada de Roeulx. [Group Sheet] [Family Chart]

  4. 7.  Ada de Roeulx (daughter of Eustache de Hainault and Marie de Morlanwelz).
    1. 3. Aleid van Boulaere

Generation: 4

  1. 8.  Gilles I de Blicquy was born about 1125 (son of Otto I de Blicquy and Helvis); died between 1161 and 1162.
    1. 4. Otton II de Trazegnies de Blicquy was born about 1150; died about 1192.

  2. 14.  Eustache de Hainault (son of Arnould de Hainault and Beatrix van Ath); died in 1192 in Palestine.

    Eustache married Marie de Morlanwelz. Marie (daughter of Jean de Morlanwelz) died before 1174. [Group Sheet] [Family Chart]

  3. 15.  Marie de Morlanwelz (daughter of Jean de Morlanwelz); died before 1174.


    Heiress of Roeulx.

    1. Eustache le Valet died in Jul 1186.
    2. 7. Ada de Roeulx