Whakaotihia te rerenga e whai ake nei: I whakahonoretia ia e Kuini Christina o Sweden hei rangatira i te tau 1651, a i te 28 o Mei 1654, i hangaia ia hei kaute. I te tau 1652, i whakaingoatia ia e ia hei rangatira rangatira mo te hoiho o te rangatiratanga. I roto i nga Pakanga Polish, ko Douglas i te mahi a Kingi Charles X. I a ia te kingi i te
te pakanga o Warsaw i te tau 1656. I te 13 o Mei 1657, i whakatairangahia ia e te kingi ki te marae.