Saxony Archives and Libraries
Here is a link to an article by Volkmar Weiss re. family history research in Saxon archives: http://www.v-weiss.de/interesse.html The author also created a list of records with genealogical content, their time frames and repositories most useful to the family researcher looking for such in Saxony. See http://www.v-weiss.de/sachsen-archive.html Clicking on "Sachregister der personengeschichtlichen Quellen" will list record types and also show for which town/village they are available. For availability of such records check also www.familysearch.org Family History Library Catalog.
There is a general article about Archives and Libraries in FamilySearch Wiki, Portal Germany, Archives and Libraries which will explain the use of them in a condensed fashion.
This is a link to the oldest library collection in Saxony: http://rsb.zwickau.de/
The four state archives of Sachsen, Dresden, Leipzig, Freiberg and Chemnitz have their archival holdings online, see http://www.archiv.sachsen.de/5429.htm There is also a provisional archive for Bautzen.
For addresses of local archives see: http://www.archivschule.de/content/29.html
Death Records in the City Archive of Leipzig
Since 1595 the death records of the city of Leipzig were not recorded as usual by the Church but were written down by the city council's office. This office issued burial certificates which the gravedigger needed. After the burial the certificate was returned and collected in the so called Leichenbuch. Since 1846 the burial certificates have been arranged alphabetically.
The books are located at the City Archive in Leipzig with the following archival registration numbers:
184.108.40.206.1 business records
220.127.116.11.1.1 city council death record books 1595-1875
18.104.22.168.1.2 burial certificates 1846-1875
22.214.171.124.1.3 burial books of gravediggers 1690-1879
126.96.36.199.1.4 books of the graves at the Johannis cemetery 1680-1875
188.8.131.52.1.5 various registers and indexes
To contact the City Archive of Leipzig, see