Since my previous post about a project to make an index (or database) of the letters in the archive of the Livonian Governor General I have finished EAA 278.1.XX-31 (The war in Courland 1701-1708) and started on LVVA, fond 7349, op. 1, vol. 272 (the old XX-3) . According to the modern heading it's supposed to contain letters from the officers of the regiment "Livländska Adelsfanan", but this is a distortion of Bienemann's "Schreiben des Ob. der livländischen Adelsfahne O. Brakel, des Oberstl. H. J. von Brandt, des Ob. Joachim v. Cronmann, Christer Horn's, des Oberstl. Hans Hinrich von Liewen, des Ob. Andr. v. Zöge.". Of these officers only Brakel belonged to "Livländska Adelsfanan. Brandt commanded dragoons and Cronman a Finnish infantry regiment, while Horn belonged to Governor General Dahlbergh's regiment. Liewen and Zöge commanded battalions of infantry and the latter was also deputy garrison commander at Dorpat.
XX-31 is perhaps most interesting for the letters from 1708 (about 100 of 260) and the light they shed on the situation in Lewenhaupt's corps in the weeks leading up to the arrival of the King's order to gather supplies for three months. This was a period which Hugo Uddgren didn't really analyze in the second volume of his Lewenhaupt biography (he used just about 10 pages for describing the events during the first six months, while he spent 50 on the last days of June 1709) and I don't think any Swedish historian has even looked at the volume since.
As is often the case XX-31 contains a rather haphazard collection of letters and documents. Notable correspondents include Lt. Col. Mathias Gustaf Staël von Holstein (1666-1720), stationed at Bauska (about 35 letters) and Lt. Col. Ernst Carl von Glasenapp (about 30).