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Cosby, Dudley Alexander Sydney, (c1730-1774), Baron Sydney of Leix, diplomat

This page summarises records created by this Person

The summary includes a brief description of the collection(s) (usually including the covering dates of the collection), the name of the archive where they are held, and reference information to help you find the collection.

Surname: Cosby
Forenames: Dudley Alexander Sydney
Gender: Male
Date: c1730-1774
Title: Baron Sydney of Leix
Name authority reference: GB/NNAF/P155462 (Former ISAAR ref: GB/NNAF/P37377 )
Number Description Held by Reference Further information
1765-66: private and official corresp (copies)
Collection held privately: enquiries to Public Record Office of Northern Ireland (PRONI)
NRA 39341 Cosby
1763-65: misc corresp
British Library, Manuscript Collections
See Index of MSS, III, 1984
1762-68: letters to Sir Robert Wilmot
Derbyshire Record Office
NRA 27876 Wilmot-Horton