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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 )
Collections
Number Description Held by Reference Further information
1
1765-66: private and official corresp (copies)
Collection held privately: enquiries to Public Record Office of Northern Ireland (PRONI)
T.3829/H
NRA 39341 Cosby
2
1763-65: misc corresp
British Library, Manuscript Collections
See Index of MSS, III, 1984
3
1762-68: letters to Sir Robert Wilmot
Derbyshire Record Office
D3155
NRA 27876 Wilmot-Horton