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Record Information
ID:1579
Name:ÖStA_HHStA_Familycorrespondence_A_box11_ FerdinandIII_to Leopold Wilhelm_1640-07-20
Current Location
Country:Austria
City:Vienna
City:Österreichisches Staatsarchiv, Haus-,Hof- und Staatsarchiv,Familienkorrespondenz, A, Karton 11,
Origin
Dates: -
Author:Emperor Ferdinand III ()(1608-1657), Archduke of Austria, King of Hungary and Bohemia, Holy Roman Emperor
Sender:id.
Receiver:Archduke Leopold Wilhelm (1614-1667)
Region:Austria
City:Vienna
Content
Type:Cipher
Status:Non-decrypted
Cipher Type:Unknown
Symbol Sets:Graphic signs
Pages:4
Creation
Owner:19
Creator:19
Creation Date:2020-07-14 00:00:00
Access mode:Authentication required

ID 1579
Name ÖStA_HHStA_Familycorrespondence_A_box11_ FerdinandIII_to Leopold Wilhelm_1640-07-20
Owner
Current Location and Name Vienna,Österreichisches Staatsarchiv, Haus-,Hof- und Staatsarchiv,Familienkorrespondenz, A, Karton 11,
ÖStA_HHStA_Familycorrespondence_A_box11_ FerdinandIII_to Leopold Wilhelm_1640-07-20
Dates 1640 -
Authors Emperor Ferdinand III ()(1608-1657), Archduke of Austria, King of Hungary and Bohemia, Holy Roman Emperor
Austria Vienna
Languages Cleartext:German
Plaintext:
Country Austria
City Vienna
Holder Österreichisches Staatsarchiv, Haus-,Hof- und Staatsarchiv,Familienkorrespondenz, A, Karton 11,
Author Emperor Ferdinand III ()(1608-1657), Archduke of Austria, King of Hungary and Bohemia, Holy Roman Emperor
Sender id.
Receiver Archduke Leopold Wilhelm (1614-1667)
Region Austria
Origin City Vienna
Start Year 1640
Start Month 7
Start Day 20
End Year
End Month
End Day
Record
Type
Cipher
Status Non-decrypted
Symbol Set Graphic signs
Cipher Type Unknown
Cipher Type (notes)
Symbol Sets (notes)
No. of Pages 4
Inline Cleartext Yes
Inline Plaintext No
Cleartext
Language
German
Plaintext
Language
Private Ciphertext True
Available Documents
Paper
Access Mode Authentication required
Creation Date 7/14/20
Key: encoded plaintext type
Key: numbers
Key: content words
Key: function words
Key: syllables
Key: morphological endings
Key: phrases
Key: sentences
Key: punctuation
Key: nomenclature size
Key: sections
Key: headings
Key: plaintext arrangement
Key: ciphertext arrangement
Key: memorability
Key: symbol set
Key: diacritics
Key: code length
Key: code types
Key: metaphors
Key: material properties
Key: instructions

Additional Information
This seems to be a draft answer by Emperor Ferdinand III, dated 1640, July 20, to an undated letter by his brother Leopold Wilhelm. The cipher, likely to be a homophonic substitution, was probably devised by His Majesty in person and has never been solved. Literature: Ledel, Eva-Katherine, Pruvate KorrepondenzKaiser Ferdinands III an Erzherzog Leopold Wilhelm,1640-1643, 1645 (unpoblisheddoctoral thesis, Vienna 1992), pp.15,32; Wrnst, Hildegard, "Geheimschriften im diplomatischen Briefwechsel zwischen Wien, Madrid und Brüssel, 1635-1642"in: MÖStA 42, 1992, pp. 102-127 and, ib., 45 (1997, pp. 207-232); id., "Geheimschriften der Habsburger im Dreissigjährigen Krieg,"in: Siglo de Oro: Decadencia. Spaniens Kulktur und Politik in der ersten Hälfte des 17. Jahrhunderts, Heinz Duchhardt, ed., Köln, Weimar, Wien, 1996, pp.95-108; Piquer, Henri, "Chiffres de la correpondence diplomatique entre Vienne et Madrid de 1641 a 1651" in MÓStA 48 (2000), pp. 367-377; Leopold Auer, "Die Verwendung von Chiffren in der diplomatischen Korrepondenz des Kaiserhofs im 17. und 18. Jahrhundert," in, Anne-Simone Rous, ed., Geheime Post (2015).
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