"Ростислав" meaning in Bulgare

{
  "categories": [
    {
      "kind": "other",
      "name": "Prénoms masculins en bulgare",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Bulgare",
      "orig": "bulgare",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Voir le russe Ростислав, Rostislav."
  ],
  "forms": [
    {
      "form": "Ростислава",
      "source": "form line template 'équiv-pour'",
      "tags": [
        "feminine"
      ]
    }
  ],
  "lang": "Bulgare",
  "lang_code": "bg",
  "pos": "name",
  "pos_title": "Prénom",
  "senses": [
    {
      "glosses": [
        "Rostislav."
      ],
      "id": "fr-Ростислав-bg-name-PMMN1Hwg"
    }
  ],
  "tags": [
    "first name",
    "masculine"
  ],
  "word": "Ростислав"
}

{
  "categories": [
    "Prénoms masculins en bulgare",
    "bulgare"
  ],
  "etymology_texts": [
    "Voir le russe Ростислав, Rostislav."
  ],
  "forms": [
    {
      "form": "Ростислава",
      "source": "form line template 'équiv-pour'",
      "tags": [
        "feminine"
      ]
    }
  ],
  "lang": "Bulgare",
  "lang_code": "bg",
  "pos": "name",
  "pos_title": "Prénom",
  "senses": [
    {
      "glosses": [
        "Rostislav."
      ]
    }
  ],
  "tags": [
    "first name",
    "masculine"
  ],
  "word": "Ростислав"
}