In the previous entry I started to look at the case of Menzen manor, which fell in early August 1702. A glaring weakness is Sundberg's failure to use Baltic archives. I took a quick look in my index of incoming letters and found 120 items dated August 1702 and of them 33 are earlier than the 10th. Of particular interest is the volume EAA.278.1.XX-18, which contains letters from Lt. Col. H. J. Brandt, sent from Wolmar in late July and early August. Brandt had passed Menzen on his way to Wolmar from Marienburg, so he knew the area quite well.
On 4 August Brandt wrote to Frölich about recent events and enclosed a couple of reports he had received. One of these, sent by a certain Berch on 3 August, mentions that Lt. Col. Yxkull at Menzen had sent a scouting party under the command of captain Knoblauch, which had encountered a small Russian force which it had defeated. On 8 August Brandt reported that according to rumours the enemy had appeared before Menzen two days earlier. There were no reports of subsequent events. Brandt had sent out a detachment of 60 men under the command of major Laurentzen and hoped to have more news when it returned. Next is a short note from the bailiff Ringenheim, dated 7 August, in which he reports that Menzen is holding.
The next letter from Brandt is dated 11 August. It is accompanied by one report from Ringenheim and one from major Laurentzen. Ringenheim writes that Menzen had been burnt on Thursday (the 7th). He did not know if Yxkull had been killed or captured. Another detailed account of events in early August is found in a letter from the clergyman Andreas Neudahl, dated 15 August (EAA.278.1.XX-19)
Among outgoing letters from Governor Frölich (LVVA, Fond 7349, op. 1, vol. 74) several mention Menzen (to de la Gardie, to Strokirch and to Schlippenbach 11 August )
Another source Sundberg has overlooked(?) is Christian Kelch's Liefländische Historia, in which Menzen is mentioned briefly on page 288 in volume 2.
Even more glaring is Sundberg's failure to use Russian sources. He could for example have started with Heldur Palli's Mèdu dvumja bojami za Narvu (1966), which discusses Menzen on pages 188-189.