Mezue ahịrịokwu na-esonụ: Queen Christina nke Sweden mere ya ka ọ bụrụ onye baron na 1651, na 28 May 1654, mere ya ka ọ bụrụ onye na-ekwu. N'afọ 1652, o mere ya onye nwe eze nke ịnyịnya. N'agha ndị a lụrụ na Poland, Douglas nọ na-ejere Eze Charles nke Iri ozi. Ya na eze nọ n'ọgbọ agha
agha a lụrụ na Warsaw n'afọ 1656. Na 13 Mee 1657, eze buliri ya elu ka ọ bụrụ onye isi ndị agha.