Dench ni à bini Heworth Area ti York ni ọdun 1934 fun Eleanora Olive ati Reginald Arthur Dench to jẹ Dokita (1897-1964).  Iya Óṣere lóbinrin naa wa lati iran irish ti a si bisi Dublin ṣugbọn baba rẹ wa lati iran èdè gẹẹsi to dagba si dublin to si ja ni Western Front   ni Ógun Àgbayé Akọkọ. 
Dench ni a bini Heworth Area ti York ni ọdun 1934 fun Eleanora Olive ati Reginald Arthur Dench to jẹ Dokita (1897-1964).  Iya Ósere lóbinrin naa wa lati iran irish ti a si bisi Dublin ṣugbon baba rẹ wa lati iran edè gẹẹsi to dagba si dublin to si ja ni Western Front   ni Ógun Agbaye Akoko. 