Descendancy

Gauthier d'Oisy Sire d' Avesnes: B: ABT 1110. D: 1147
    + Ade\Ide de Mortagne: B: ABT 1110.
        2 Nicholas "Plukiel" Seigneur d' Avesnes: B: ABT 1129. D: ABT 1170
            + Mahaut (Mathilda) Countess de la Roche: B: 1133.
                3 Jacques Seigneur d' Avesnes: B: ABT 1150. D: 7 SEP 1191
                    + Ameline (Adela) de Guise: B: ABT 1155. D: 1207
                        4 Gauthier (Wautier) II d' Avesnes: B: ABT 1180. D: ABT 1243
                            + Marguerite Comtesse de Blois: B: ABT 1177. D: 7 MAY 1231
                                5 Marie d' Avesnes: B: ABT 1200. D: 1241
                                    + Hugh V de Chatillon Comte de Blois & St. Pol: B: ABT 1200. D: 9 APR 1248
                                        6 Guy II de Chatillon Comte de St. Pol: B: ABT 1225. D: 12 MAR 1288/89
                                            + Mahaut (Maud) of Brabant: B: 1217. D: 29 SEP 1288
                                        6 Gauthier IV de Chatillon: B: ABT 1226. D: 1261
                                            + Isabelle (Isabeau) de Villehardouin: B: ABT 1233. D: AFT FEB 1298/99
                        4 Bouchard d' Avesnes: B: AFT 1180. D: 7 SEP 1244
                            + Margaret Countess of Hainault & Flanders: B: 2 JUN 1202. D: 10 FEB 1279/80
                                5 John I d' Avesnes: B: 1 MAY 1218. D: 24 DEC 1257
                                    + Adelaide (Aleidis) of Holland: B: ABT 1228. D: ABT 1284
                                        6 John II d' Avesnes: B: 1247. D: 22 AUG 1304
                                            + Philippa de Luxembourg: B: ABT 1255. D: 1311
                                        6 Guy de Avesnes: B: ABT 1253. D: 28 MAY 1317
                                5 Baudouin d' Avesnes: B: SEP 1219. D: 10 APR 1295
                                    + Felicite de Coucy: B: ABT 1226. D: 1307
                                        6 Beatrice d' Avesnes: B: ABT 1250. D: 25 FEB 1320/21
                                            + Henry III Count of Luxembourg: B: 1240. D: 5 JUN 1288
                        4 Mathilde (Mahaut) d' Avesnes: B: ABT 1182. D: AFT 5 NOV 1236
                            + Louis IV Comte de Chiny: B: ABT 1180. D: AFT 2 JAN 1226/27
                                5 Johanna (Jeanne) Comtesse de Chiny: B: ABT 1205. D: BEF 1271
                                    + Arnold III Graf von Looz: B: ABT 1207. D: BEF 1273
                                        6 Aleidis von Looz: B: ABT 1242.
                                            + Albrecht Heer van Voorne: B: ABT 1241. D: 30 DEC 1287
                                            + Dirk II von Heinsberg: B: ABT 1225. D: 14 OCT 1268
                                5 Agnes de Chiny: B: BEF 1212.
                                    + Hugh IV Comte de Rethel: B: ABT 1242. D: BEF 1277
                            + Nicholas IV Seigneur de Rumigny: B: ABT 1155. D: 19 FEB 1204/05
                                5 Nicholas V Seigneur de Rumigny: B: ABT 1200. D: 21 MAR 1256/57
                                    + Elisabeth de Coucy: B: ABT 1210. D: AFT JUL 1263
                                        6 Hugh II Seigneur de Rumigny: B: ABT 1230. D: 2 AUG 1270
                                            + Philippine Dame de Boves: B: ABT 1244.
                        4 Ida d' Avesnes: B: ABT 1184. D: 23 SEP 1216
                            + Engelbert IV Sire d' Enghien: B: ABT 1170. D: AFT 1205
                                5 Mahaut (Elisabeth\Ida) d' Enghien: B: ABT 1202.
                                    + Everard IV Sire de Mortagne: B: BEF 1192. D: Deceased
                                        6 Arnoul Sire de Mortagne: B: ABT 1220. D: AFT 1265
                                            + Yolande de Coucy: B: ABT 1225.
                                5 Sohier (Siger) II d' Enghien: B: ABT 1206.
                                    + Aleidis van Zotteghem: B: ABT 1205.
                                        6 Walter I "Le Grand" Sire d' Enghien: B: ABT 1240. D: 1271
                                            + Marie de Rethel: B: ABT 1245. D: MAR 1315/16
                                        6 Marie d' Enghien: B: ABT 1245. D: BEF 1275
                                            + Hugh IV Comte de Rethel: B: ABT 1242. D: BEF 1277
                                            + Jean Comte de Brienne: B: ABT 1230. D: AFT SEP 1260
                        4 Ada d' Avesnes: B: ABT 1185. D: AFT 1249
                            + Henri III Wafflart Comte de Grandpre: B: ABT 1155. D: 1211
                3 Adelaide d' Avesnes: B: ABT 1152.
                    + Engelbert I d' Enghien: B: ABT 1145. D: 1180
                        4 Engelbert IV Sire d' Enghien: B: ABT 1170. D: AFT 1205
                            + Ida d' Avesnes: B: ABT 1184. D: 23 SEP 1216
                                5 Mahaut (Elisabeth\Ida) d' Enghien: B: ABT 1202.
                                    + Everard IV Sire de Mortagne: B: BEF 1192. D: Deceased
                                        6 Arnoul Sire de Mortagne: B: ABT 1220. D: AFT 1265
                                            + Yolande de Coucy: B: ABT 1225.
                                5 Sohier (Siger) II d' Enghien: B: ABT 1206.
                                    + Aleidis van Zotteghem: B: ABT 1205.
                                        6 Walter I "Le Grand" Sire d' Enghien: B: ABT 1240. D: 1271
                                            + Marie de Rethel: B: ABT 1245. D: MAR 1315/16
                                        6 Marie d' Enghien: B: ABT 1245. D: BEF 1275
                                            + Hugh IV Comte de Rethel: B: ABT 1242. D: BEF 1277
                                            + Jean Comte de Brienne: B: ABT 1230. D: AFT SEP 1260
                            + Adelheid dau. of Arnold III van Oudenaarde: B: ABT 1170.
                3 Ida d' Avesnes: B: ABT 1155.
                    + William IV de St. Omer: B: ABT 1150. D: 1192
                        4 Nicholas I Seigneur de Bootien: B: ABT 1178. D: BEF 1219
                            + Margaret Princess of Hungary: B: 1175. D: AFT 1223
                                5 William de St. Omer: B: ABT 1210. D: AFT 19 OCT 1265
                                    + Petronilla (Pernel) de Lacy: B: ABT 1196. D: AFT 9 MAR 1289/90
                                    + Unknown First Wife: B: ABT 1214.
                                        6 Thomas de St. Omer: B: ABT 1240. D: Deceased
                                            + Alice : B: ABT 1255.
        2 Petronille d' Avesnes: B: ABT 1130.
            + Johan Seigneur de Cysoing: B: ABT 1120. D: 1154
                3 Elizabeth de Lamersart de Peteghem: B: ABT 1150.
                    + Jean I Sgnr. de Nesle: B: ABT 1150. D: 1214
                        4 Gertrude de Nesle: B: ABT 1170. D: 1239
                            + Raoul I de Clermont: B: ABT 1175. D: 1214
                                5 Simon II Seigneur de Clermont: B: ABT 1200. D: 1 FEB 1285/86
                                    + Alix (Adele) de Montfort: B: ABT 1220. D: 28 MAR 1279
                                        6 Raoul II de Clermont: B: ABT 1250. D: 11 JUL 1302
                                            + Alice de Dreux: B: ABT 1255. D: BEF 1296
                                        6 Beatrix de Clermont: B: ABT 1260.
                                            + Jean IV Chatelain de Lille: B: ABT 1257. D: BET 1291 AND 1292
                        4 Adele (Ade) de Nesle: B: ABT 1179. D: AFT DEC 1252
                            + Enguerrand II de Coucy Seigneur de Boves: B: ABT 1179.
                                5 Robert II de Coucy Seigneur de Boves: B: ABT 1208. D: BEF 1249
                                    + Helvida d' Autreches: B: BEF 1215.
                                        6 Philippine Dame de Boves: B: ABT 1244.
                                            + Hugh II Seigneur de Rumigny: B: ABT 1230. D: 2 AUG 1270
                                5 Elisabeth de Coucy: B: ABT 1210. D: AFT JUL 1263
                                    + Nicholas V Seigneur de Rumigny: B: ABT 1200. D: 21 MAR 1256/57
                                        6 Hugh II Seigneur de Rumigny: B: ABT 1230. D: 2 AUG 1270
                                            + Philippine Dame de Boves: B: ABT 1244.
                3 Jean II Seigneur de Cysoing: B: ABT 1152. D: AFT 1220
                    + Mabilia de Guines: B: ABT 1168. D: AFT 1197
                        4 Jean III Seigneur de Cysoing: B: ABT 1184. D: AFT 1240
                            + Marai de Bourghelles: B: ABT 1188. D: AFT 1220
                                5 Catherine de Cysoing: B: ABT 1210.
                                    + Hendrik Heer van Voorne: B: ABT 1205. D: 13 MAR 1258/59
                                        6 Albrecht Heer van Voorne: B: ABT 1241. D: 30 DEC 1287
                                            + Aleidis von Looz: B: ABT 1242.

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