"Bertram" meaning in Ancien français

{
  "categories": [
    {
      "kind": "other",
      "name": "Prénoms masculins en ancien français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Ancien français",
      "orig": "ancien français",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Voir Bertram ci-dessus."
  ],
  "forms": [
    {
      "form": "Bertrans",
      "raw_tags": [
        "Cas sujet"
      ],
      "tags": [
        "singular"
      ]
    }
  ],
  "lang": "Ancien français",
  "lang_code": "fro",
  "pos": "name",
  "pos_title": "Prénom",
  "related": [
    {
      "word": "Bertran"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en ancien français",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Exemples en ancien français à traduire",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "Élie de Saint-Gilles, manuscrit 25516 français de laBnF, fol. 77v. a.",
          "text": "Il et Bertran ses niés li preus et li gentis"
        },
        {
          "ref": "idem, fol. 80v. b.",
          "text": "Bertram le preu le sage le chevalier hardi"
        }
      ],
      "glosses": [
        "Bertrand."
      ],
      "id": "fr-Bertram-fro-name-HAmfwWke"
    }
  ],
  "tags": [
    "first name",
    "masculine"
  ],
  "word": "Bertram"
}

{
  "categories": [
    "Prénoms masculins en ancien français",
    "ancien français"
  ],
  "etymology_texts": [
    "Voir Bertram ci-dessus."
  ],
  "forms": [
    {
      "form": "Bertrans",
      "raw_tags": [
        "Cas sujet"
      ],
      "tags": [
        "singular"
      ]
    }
  ],
  "lang": "Ancien français",
  "lang_code": "fro",
  "pos": "name",
  "pos_title": "Prénom",
  "related": [
    {
      "word": "Bertran"
    }
  ],
  "senses": [
    {
      "categories": [
        "Exemples en ancien français",
        "Exemples en ancien français à traduire"
      ],
      "examples": [
        {
          "ref": "Élie de Saint-Gilles, manuscrit 25516 français de laBnF, fol. 77v. a.",
          "text": "Il et Bertran ses niés li preus et li gentis"
        },
        {
          "ref": "idem, fol. 80v. b.",
          "text": "Bertram le preu le sage le chevalier hardi"
        }
      ],
      "glosses": [
        "Bertrand."
      ]
    }
  ],
  "tags": [
    "first name",
    "masculine"
  ],
  "word": "Bertram"
}