Across the world, Bertrade (Bertrade 
) is a rare unisex given name. The first name Bertrade is characteristic of the Democratic Republic of the Congo, where it is a rare epicene name, and France, where it is a very rare female name.
| VARIANT | COUNTRY |
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| Bertrade | France, Democratic Republic of the Congo, Canada, Colombia, United States |
Bertrade is also a name for the fictitious and mythical characters: Bertrade , the operatic character in the opera Grisélidis by Jules Massenet.
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bertrade de laon Frankish queen, FR (b. 720) |
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bertrade de montfort frankish queen, FR (b. 1070) |
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| bertrade de montfort (1155-1227) (b. 1155) |
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| bertrade van hollant Peerage person ID=629431 |
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| bertrade von landsberg Peerage person ID=8939 |
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| bertrade van vorden |
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