{
  "description": "Mapping from historical municipal archives to HALC 1500 territories",
  "source": "Historical Atlas of the Low Countries (HALC) by R.J. Stapel",
  "citation": "Stapel, R.J. (2023). Historical Atlas of the Low Countries. A GIS Dataset of Locality-Level Boundaries (1350\u20131800). Research Data Journal for the Humanities and Social Sciences, 8(1), 1\u201333.",
  "mappings": {
    "Gemeentearchief Vianen": {
      "halc_filter": {
        "ADM1": "VI"
      },
      "description": "Lordship of Vianen (c. 1500)",
      "note": "Independent lordship, not part of Holland or Utrecht until 1725"
    },
    "Gemeentearchief Tholen": {
      "halc_filter": {
        "ADM2": "Tholen c.s."
      },
      "description": "Tholen and surrounding polders (c. 1500)"
    },
    "Gemeentearchief Wassenaar": {
      "halc_filter": {
        "ADM2": "Wassenaar"
      },
      "description": "Lordship of Wassenaar (c. 1500)"
    },
    "Stadsarchief Vlaardingen": {
      "halc_filter": {
        "ADM2": "Vlaardingen en Vlaardinger-Ambacht"
      },
      "description": "Vlaardingen and Vlaardinger-Ambacht (c. 1500)"
    },
    "Gemeentearchief Roermond": {
      "halc_filter": {
        "ADM2": "Roermond"
      },
      "description": "Quarter of Roermond, Upper Guelders (c. 1500)"
    },
    "Gemeentearchief Oldambt": {
      "halc_filter": {
        "ADM2": "Oldambt"
      },
      "description": "Oldambt district of Groningen (c. 1500)"
    },
    "Gemeentearchief Westerkwartier": {
      "halc_filter": {
        "ADM2": "Westerkwartier"
      },
      "description": "Westerkwartier district of Groningen (c. 1500)"
    },
    "Gemeentearchief Putten": {
      "halc_filter": {
        "ADM2": "Putten",
        "ADM1": "HO"
      },
      "description": "Island of Putten (c. 1500)"
    }
  }
}