Guillaume
| Origin | Gender | Meaning |
|---|---|---|
| Belgian | Boy | Will-helmet |
| French | Boy | Resolute protector |
| Middle French | Boy | Resolute protector (William) |
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| Origin | Gender | Meaning |
|---|---|---|
| Belgian | Boy | Will-helmet |
| French | Boy | Resolute protector |
| Middle French | Boy | Resolute protector (William) |
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