YourRoots Logo
Sign up free
banner

Sign up to explore more

Create a free account to navigate family trees, view ancestors, and discover connections.

Sign up free

Simon I De Montfort 1025 – 1087 – Genealogical Records

Birth Date: Abt. 1025

Birth Location: Montfort l'Amaury, Duchy of Normandy (now in Ile de France), Kingdom of France

Death Date: 25 Sep 1087

Death Location: Epernon, Kingdom of France

Father: Amaury Montfort

Mother: Bertrade Gometz

Spouse(s): Isabel Broyles, Agnes d'Évreux,

Children(s): Isabel Montfort, Bertrade Montfort,

In 1025, Simon I De Montfort nobleman entered the world in Montfort l'Amaury, Duchy of Normandy (now in Ile de France), Kingdom of France, born to Amaury I Lord of Montfort and Bertrade de Gometz. Simon I De Montfort nobleman married Isabel de Broyles, Agnes d'Évreux,, and had children including Isabel Elizabeth de Montfort, Bertrade de Montfort,. Simon I De Montfort nobleman passed away in 1087 in Epernon, Kingdom of France.

Find more search results for Simon Montfort
SM

Reliability Score

This score reflects the reliability of the source family tree. A high rating indicates a trustworthy source with strong data consistency.

Reliability Score:
B
Criteria:
  • A 3 criteria (Strong)
  • B 2 criteria (Medium)
  • C 1 criteria (Basic)
  • N/A 0 criteria (Insufficient)

This tree's reliability score:

  • Record available
  • Descendant's record available
  • Star tree owner

Biography

  • In 1025, Simon I De Montfort nobleman entered the world in Montfort l'Amaury, Duchy of Normandy (now in Ile de France), Kingdom of France, born to Amaury I Lord of Montfort and Bertrade de Gometz.
  • Simon I De Montfort nobleman married Isabel de Broyles, Agnes d'Évreux,, and had children including Isabel Elizabeth de Montfort, Bertrade de Montfort,.
  • Simon I De Montfort nobleman passed away in 1087 in Epernon, Kingdom of France.

Immediate Family

Parents

Amaury Montfort
– 1052
Birth Location: France
AM
Bertrade Gometz
Birth Location: –
BG

Spouses(s)

Isabel Broyles
1034 –
Birth Location: Broyes, Marne, France
IB
Agnes d'Évreux,
1030 – 1087
Birth Location: Évreux, Eure, Haute-Normandie, Kingdom of France
Ad

Children(s)

Isabel Montfort
1057 –
Birth Location: –
IM
Bertrade Montfort,
1070 – 1117
Birth Location: Montfort, Yvelines, Île-de-France, France
BM

Simon Montfort's Ancestors

Self
Simon Montfort
1025 – 1087
Birth Place: Montfort l'Amaury, Duchy of Normandy (now in Ile de France), Kingdom of France
Parents
Amaury I Lord of Montfort
– 1052
France
Bertrade (de) Gometz
Grandparents
William (de) Hainaut
Great-Grandparents
2nd-Great-Grandparents

Simon Montfort's Descendants

1.
SM
Simon (I De) Montfort (Abt. 1025 – 25 Sep 1087) m. Isabel (de) Broyles (1034 – ) m. Agnes d'Évreux, (1030 – 1087)
  1. 1. Isabel (Elizabeth de) Montfort (1057 – ) m. Raoul (III House de Tosny) (Toeni), (1029 – 9 Apr 1102)
    1. 1. Raoul (IV House de Tosny) (Toeni), (1080 – 1126) m. Adelisa (de) Huntington (Abt 1085 To Abt 1076 – Abt 1126 To Abt 1126)
      1. 1. Roger (III de Tosny \ Toeni \) Toni, (Abt. 1104 – 29 Sep 1157) m. Ida (de) Hainault (Abt 1110 – Abt 1194)
        1. 1. Ralph (V de Tosny) (Tosni), (1130 – 1162) m. Margaret (Marguerite of Leicester de) Beaumont (Abt 1125 To Abt 1136 – after 1185)
        2. 2. Godeheut (de) Toeni (1138 – 1186) m. William (III de Mohun, Barron of) Dunster (1121 – 1176)
      2. 2. Margaretha (Margaret House de Tosny) Toeni (1118 – 1185) m. Walter (fitzRichard de) Clifford, (1113 – 1190)
        1. 1. Rosamund ("the Fair" de) Clifford, (Abt. 1136 – Abt. 1176)
        2. 2. Lord (Walter ll de) Clifford, (1160 – 17 Jan 1221) m. Agnes (de Condet) Cundy, (1145 – 23 Dec 1220)
    2. 2. Godehilde (House de) Tosny, ( – 15 Oct 1097) m. Baldwin (I House of) Flanders, (Abt. 1060 – 2 Apr 1118)
  2. 2. Bertrade (de) Montfort, (1070 – 14 Feb 1117) m. Fulk (IV "le Rechin" Theobaldus de) Anjou, (30 Apr 1043 – 14 Apr 1109) m. Philip (I 'the Amorous') Capet, (23 May 1052 – 29 Jul 1108)
    1. 1. Fulk (V 'The Younger') d'Anjou, (Abt. 1089 – 13 Nov 1144) m. Melisende (House of) Rethel, (1105 – 11 Sep 1161) m. Ermengarde (du) Maine (1 Jul 1092 – 15 Jan 1126)
      1. 1. Baldwin (III House of) Anjou, (1130 – 10 Feb 1163) m. Theodora Komnene, (Abt. 1145 – )
      2. 2. Amalric (I of) Anjou, (1136 – 11 Jul 1174) m. Maria Komnene, (Abt. 1154 – Abt. 1212) m. Agnes (of) Courtenay, (1136 – 1184)
        1. 1. Isabella (I House of) Anjou, (Abt. 1172 – 5 Apr 1205) m. Henry II m. Amalric (II ( Aimery) de) Lusginan, (Abt. 1153 – 1 Apr 1205) m. Conrad (Marquis of) Montferrat, ( – 28 Apr 1192)
        2. 2. Sibylla (of Jerusalem House of) Anjou, (1160 – 1190) m. Sir (Guy House of) Lusignan, (Abt. 1150 – 18 Jul 1194) m. William (Longsword of) Montferrat, (Abt. 1140 – 1177)
        3. 3. Baldwin (IV 'The Leper' of) Anjou, (Abt. Jun 1161 – 16 Mar 1185) m. Never Married
      3. 3. Mathilde (Matilda AKA also known as Alice or Isabella de Gâtinais d'Anjou Plantagenet (Angevin) Dynasty), (Abt 1105 – Abt 1119) m. William (Adelin Aetheling Ætheling House of) Normandy, (5 Aug 1103 – 25 Nov 1120)
      4. 4. Elias D'Anjou (1111 – 15 Jan 1151)
      5. 5. Sybyl (Sibylle of) Anjou, (1112 – 1165) m. Thierry (Dietrich of) Alsace, (1101 – 4 Feb 1168) m. William ('Clito' =Anglo-Saxon "Aetheling" House of) Normandy, (25 Oct 1102 – 28 Jul 1128) m. Theodoric (Thierry (or Diederik) House of) Alsace, (17 Jun 1101 – 4 Feb 1168)
        1. 1. Philip (I House of) Alsace, (1143 – 1 Aug 1191) m. Teresa (Mafalda Mathilde of) Portugal, (1157 – 6 May 1218) m. Elisabeth (Mabille Capetian House of) Vermandois, (1143 – 28 Mar 1183)
        2. 2. Margaret (I House of) Metz, (2 Apr 1150 – 17 Dec 1195) m. Baldwin (V House of) Flanders, (Jul 1150 – 17 Dec 1195)
        3. 3. Matthew (House of Metz de) Alsace, (Abt 1137 – 1173) m. Marie (Maria de) Blois, (1136 – 1182) m. Eleonore (de) Vermandois, (1152 – 19 Jun 1213)
      6. 6. Geoffrey (V Plantagenet-1st (House of) Gatinais), (24 Aug 1113 – 7 Sep 1151) m. Matilda (( Maud) Norman of) Anjou, (7 Feb 1102 – 10 Sep 1167) m. Alice (Queen) Eleonore (ABT 1112 – ) m. Adelaide of (1115 – 10 SEP 1169)
        1. 1. Agnes Plantagenet (ABT JUL 1130 – 1192)
        2. 2. Hamelin ('The Bastard' d'Anjou Plantagenet\de) Warenne, (28 Sep 1130 – 14 May 1202) m. Isabella (de) Warenne (1136 – 13 Jul 1199)
        3. 3. Henry (II 'Curtmantle') Plantagenet-Angevin, (5 Mar 1133 – 6 Jul 1189) m. Eleanor (Eleonora Ramnulfid) House, (6 December 1122 – 31 Mar 1204) m. Ida (de) Tosny, (1156 – 7 Mar 1226)
        4. 4. Geoffrey (VI "Mantell") Plantagenet, (10 Jun 1134 – 3 Aug 1157)
        5. 5. Guillaume (I) Plantagenet, (29 Jul 1136 – 6 Feb 1163) m. Cecily (FitzMiles, Countess Of Hereford) FitzPayne (1120 – 1204)
        6. 6. Emma Plantagenet (ABT 1138 – )
        7. 7. Adewis Plantagenet (ABT 1132 – 1192)

Simon Montfort's Timeline

2 Records

1025
Abt. 1025
Birth of Simon I De Montfort nobleman in Montfort l'Amaury, Duchy of Normandy (now in Ile de France), Kingdom of France
Montfort l'Amaury, Duchy of Normandy (now in Ile de France), Kingdom of France
1087
25 Sep 1087
Age 62
Death of Simon I De Montfort nobleman in Epernon, Kingdom of France
Epernon, Kingdom of France

Sources

    Genealogy Event 1
    Event Type: Birth
    Event Date: Abt. 1025
    Event Place: Montfort l'Amaury, Duchy of Normandy (now in Ile de France), Kingdom of France

    Genealogy Event 2
    Event Type: Death
    Event Date: 25 Sep 1087
    Event Place: Epernon, Kingdom of France
Find more search results for Simon Montfort

About YourRoots

Family Tree Map

Explore your family tree geographically

Import your GEDCOM file to transform your family tree into an interactive global map. See your roots laid out visually and understand your true geographic heritage.

Powerful tools like “Trace Back To Me” instantly map your family’s migration paths from a chosen ancestor all the way back to you.

LEARN MORE
AI Genealogy Research

Discover ancestors beyond “end-of-line” automatically

Import your family tree and let AI expand it for you. AI Ancestor Finder scans “end-of-line” ancestors to uncover their parents across hundreds of family lines at once. AI Deep Research analyzes selected ancestors and family clusters, suggesting relevant records and next steps.

Turn on Auto Research Mode to get new discoveries daily or weekly, so your tree keeps growing even while you’re away.

LEARN MORE
DNA Match

Find more DNA matches across all DNA tests

Combine your DNA data with your family tree to unlock the full power of YourRoots DNA Match. Connect with relatives across major testing services — Ancestry, 23andMe, MyHeritage, and more.

View your matches’ maps and trees to identify shared ancestors, and soon you’ll be able to add them directly to your own tree and map.

LEARN MORE
Ancestry Reports

Ancestry DNA analysis that goes deeper than others

Unlock exclusive reports that reveal your deeper origins.

  • Deep Ancestry Report — Analyze 130+ ethnicities, sub-regions, and 1,800+ communities in one detailed view.
  • Global & Native American Reports — Developed with Stanford researchers to uncover hidden ancestries across all 22 chromosomes.
  • Ancient DNA Series — Compare your DNA with 1,000+ ancient genomes from Viking, Celtic, and early American civilizations.
LEARN MORE