Ludwig Freiherr von Callenberg

Ludwig von CALLENBERG: b. 1 March 1866, Zemplin - d. 10 Aug 1945, Teplitz-Schönau

Ludwig von CALLENBERG was a "Legations-Sekretär" and Lieutenant of the "Landswehr-Uhlanen-Regiments No. 5" before becoming a diplomat, special envoy assigned to a variety of locations. There are numerous mentions of this in newspapers of the era.

Engagement announcement courtesy of:

ANNO, Teplitz-Schönauer Anzeiger, 1900-03-12, Seite 4

http://anno.onb.ac.at/cgi-content/anno?aid=tsa&datum=19000312&query...

Marriage announcement courtesy of:

ANNO, Wiener Salonblatt, 1900-07-29, Seite 8

http://anno.onb.ac.at/cgi-content/anno?aid=wsb&datum=19000729&query...

Displays names of couple's respective parents.

A few further details:

1915/1916 - Google Books

https://books.google.de/books?id=RPxEBAAAQBAJ&pg=PA210&lpg=PA210&dq...

&

List of diplomatic missions of Austria-Hungary - Wikiwand

https://www.wikiwand.com/en/List_of_diplomatic_missions_of_Austria-...

&

Callenberg, Ludwig v., - Autographen 02.12.2014 - Erzielter Preis: EUR 1.900 - Dorotheum

https://www.dorotheum.com/de/l/3253019/

And also cf. "Wedding medallion":

Medaille 1900 Hochzeit, Doppelwappen / LVDOVICVS DE CALLENBERG, ANGELICA DE DOERR vz | MA-Shops

https://www.ma-shops.com/koelnermuenzkabinett/item.php?id=5329