Cognomen Montmorency (Montmorency 
) , across the world, is a rare family name. The surname Montmorency is habitual in Belgium, where it is a rare surname, France, and Canada, where it is a very rare surname. Not in comparison with a country's population, it most frequently occurs in France, the United States, and Belgium.
| VARIANT | COUNTRY |
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| Montmorency | Belgium, Canada, Brazil, France, United States |
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albéric ier de montmorency FR (b. 1100) |
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| mathieu ier de montmorency lord of Montmorency, Marly, Conflans-Sainte-Honorine and Attichy (1100-1160), FR (b. 1100) |
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mathieu ii de montmorency lord of Montmorency, FR (b. 1174) |
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| alix de montmorency daughter of Bouchard IV/V de Montmorency (b. 1200) |
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mathieu iv de montmorency French aristocrat, FR (b. 1252) |
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| mathieu iii de montmorency French aristocrat, FR (b. 1228) |
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charles ier de montmorency French military personnel, FR (b. 1307) |
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| jean i de montmorency Peerage person ID=381501 (b. 1284) |
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| isabeau de montmorency, dame de garmaines (1310-1341) (b. 1310) |
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jean ii de montmorency Abt 1401 - 6 Jul 1477 (b. 1401) |
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| jacques i de montmorency Abt 1374 - 1414 (b. 1370) |
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william of montmorency father of Anne de Montmorency, Marshal of France, FR (b. 1453) |
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anne de montmorency First Duke of Montmorency, FR (b. 1493) |
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philippe de montmorency Roman Catholic bishop, FR (b. 1496) |
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| philippe de montmorency, seigneur de liedekerke, de nivelle 1466 - 1526 (b. 1466) |
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Mr, Karen, Kathy, Katie, Patty, Roger, Renee, Doris, Dépt, Gerry, Gregg, Leila, James, Jonas, Théo, Edith, Erick, Erika, Henri, Fabio, Marina, Michel, Brian, Sylvio, Belle, Scott, An, Pam, Joy, Matt, Sara, Anne, Kyle, Rugg, Gary, Liam, Ludo, Jane, Jana, John, Tege, Nele, Vera, Fred, Inge, Sasha, Sonia, Carol, and Arthur