From "A Geographical Dictionary representing the present and ancient names of all..." page 59 of 437 pages. Published in London in 1693.
"...Bremen, Brema, is a very potent City in the lower Circle of Saxony in Germany; made more renowned by the Archbishops See, instead of Hamburg. It stands upon the River Wiser, a Free Town, and under no Prince; with a small Territory about it called Strift van Bremen..."