This plan of Oxford is derived from that of Wenceslaus Hollar published in 1643 and issued to mark the arrival in the city of the Royal Court during the English Civil War. Matthaus Merian (1593-1650) began publishing the ‘Theatrum Europaeum’ in 1633, it was not finished until 1738 by which time 21 volumes had been issued including some 20,000 pages of text, 720 maps, plans, views and other engravings and nearly 700 portraits. Although it is our belief this plan was first published in this work it does not appear in the example in the British Library. It is however contained within an untitled work in the same institution. Two keys help to identify 49 places on the map. Refer to Pennington 1055; Shirley BL G.Meri 1a. & 23a no. 90.