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Itzig Family Collection

Identifier: AR 4191 MF 1234

Scope and Content Note

The Itzig Family Collection primarily focuses on the genealogy of the family, and contains family trees and a variety of official papers of family members from the eighteenth and nineteenth centuries. Nearly all such papers are not original material, but photocopies. In addition to family trees and copies of official documents, the collection holds copies of correspondence and photographs. Karoline Cauer's unpublished manuscript of her work Oberhofbankier und Hofbaurat is also present.

Much of the material in this collection appears to have been assembled in aid of researching the family genealogy. To this end, the collection includes several family trees as well as Karoline Cauer's manuscript, Der Hofbaurat, on the life of Isaac Daniel Itzig (1750-1806), who became a royal banker and architect of Friedrich Wilhelm II. This manuscript, which forms the bulk of Series III, mentions his role in political affairs as well as the establishment of the family business, Itzig and Co., Berlin's Jüdische Freischule and the family estate.

Many photocopies of official documents are located in several areas of the collection, especially letters patent, certificates that granted political positions to members of the Itzig family such as Isaac Daniel Itzig and his father Daniel Itzig. Other official documents include those related to naturalization of family members. Such documents will be found chiefly in Subseries 2 of Series I; this subseries additionally contains copies of documents that pertain to Daniel Itzig's Familien-Institut and his testament (will). Some other copies of official documents are part of Series II. Only a few original documents are in the collection.

Subseries 4 of Series I contains some papers of members of the Mendelssohn family, who were related to the Itzig family. Prominent among these are the letters of Arnold Mendelssohn, which describe his travels in Syria and Palestine and briefly mention the revolutions of 1848, among other subjects. A handwritten travel log of Nathan Mendelssohn is also in this subseries along with copies of other Mendelssohn family papers.

In addition to Karoline Cauer's manuscript on Isaac Daniel Itzig, Series III contains a small amount of other papers on Cauer family members.


  • 1760-1983
  • Majority of material found within 1780-1900


Language of Materials

The collection is in German with a small amount of English, and French.

Access Restrictions

Open to researchers.

Access Information

Readers may access the collection by visiting the Lillian Goldman Reading Room at the Center for Jewish History. We recommend reserving the collection in advance; please visit the LBI Online Catalog and click on the "Request" button.

Collection is digitized. Follow the links in the Container List to access the digitized materials.

Use Restrictions

There may be some restrictions on the use of the collection. For more information, contact:

Leo Baeck Institute, Center for Jewish History, 15 West 16th Street, New York, NY 10011


Biographical Note

Daniel Itzig was born in 1722 in Berlin, the son of Isaac Daniel Itzig a horse merchant. Daniel Itzig became a banker and minter. His son and third child, Isaac Daniel Itzig, was born in Berlin in 1750. Like his father he was a banker and was named by Friedrich Wilhelm II in 1776 as royal banker and jeweler (Oberhofjouvelier und Banquier) and became royal architect (Hofbaurat). In 1791 Daniel Itzig and his descendants were granted naturalization by the king.

In 1777 Isaac Daniel Itzig founded with his brother-in-law David Friedländer the Jüdische Freischule in Berlin.

Daniel Itzig died in 1799, his son Isaac Daniel Itzig died in 1806.


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The Itzig Family Collection contains papers documenting the history and genealogy of the Itzig and related families. Particularly prominent are the careers and significant achievements of Daniel Itzig (1722-1799) and his son Isaac Daniel Itzig (1750-1806). The collection includes family trees, many photocopies of official certificates and letters, an unpublished typescript for a book on Isaac Daniel Itzig and a few copies of photographs of family members.

Related Material

Karoline Cauer's book Oberhofbankier und Hofbaurat; aus der Berliner Bankgeschichte des XVIII Jahrhunderts is available in the Library (HG 3060 B4 A2 C38).

Separated Material

A family album, the Album Amicorum, call number AR 114, alternately referred to as a Poesiealbum or an autograph album, was originally part of Series II, but has been removed and catalogued as a separate item.

Photographs have been removed to the Photograph Collection.

Karoline Cauer's manuscript Der Hofbaurat. 1750-1806. Ein Bankier Friedrich Wilhelms II is also available on MF 53.

Processing Information

This collection comprises two collections that were previously processed and later integrated to form one collection, with additions then added to the collection. During reprocessing in preparation for the EAD finding aid in March 2011, the former collections were divided into series, with Series I encompassing the former Itzig Family Cauer Collection (AR 4191) and Series II the former Itzig Family Collection (AR 114) while Series III contains the later additions to the collection. Arrangement within Series I and II was based upon the previous arrangement of the collection. Series I previously had four subseries and Series II had an item-level inventory on catalogue cards.

Guide to the Papers of the Itzig Family 1760-1983 AR 4191
Processed by Dianne Ritchey, Ilse Turnheim and LBI Staff
© 2011
Language of description
Script of description
Language of description note
Description is in English.
Edition statement
This version was derived from ItzigFamily.xml

Revision Statements

  • 2011-July-18: Timothy Mendenhall: added hyperlink to <archref><title render="italic">Album Amicorum</title>, <unitid>AR 114</unitid></archref>.
  • June 2012: Links to digital objects added in Container List.

Repository Details

Part of the Leo Baeck Institute Repository

15 West 16th Street
New York NY 10011 United States