226 
Private Libraries in Rome 
much original correspondence for the period during which Cardinal Fabio 
Chigi, later pope, was in public life. The inventory of Gachard classes the ma¬ 
terial in seven groups. The numbers of possible interest for the history of 
North America under each are as follows: 
Group I. Letters, instructions, etc., of the sixteenth century. 
Q, I., 6. Instructions, etc., of Sixtus IV., Paul III., and Julius III. 
Q, I., 1 . Instructions. 1550-1551. 
L, III., 61 . Letters addressed to the cardinal sub-datario. 1562-1585. 
Q, I., 11 . Instructions of the nuncio in Spain. 1581. 
J, III., 74 . Letters of Sixtus V. to princes. 1585-1591. 
M, II., 43 - 47 , 50 - 54 . Ciphers to nuncios. 1586-1590. 
M, II., 55 . Ciphers to Gregory XIV. 
M, II., 56 . Key to above ciphers. 
M, III., 58 - 60 , 62 - 72 . Letters of nuncios to Cardinal Aldobrandini. 
1592-1605. 
M, I., 11 . Letters to Cardinal Aldobrandini. 1594. 
M, III., 57 . Letter of Agucchio, etc., to the secretary of briefs. 1597- 
x 599- 
Q, I., 17 . Instructions by Agucchio, etc. 
Group II. Letters, instructions, relations, etc., under Paul V. 1605-1621. 
M, III., 75 . Ciphers from nuncios. 1605-1606. 
Q, III., 77 . Ciphers to divers persons. 1605-1606. 
Q, I., 16 . Correspondence relating to France. 1605-1607. 
M, I., 15 - 16 . Letters to Cardinal Borghese. 1607-1616. 
J, III., 76 . Letters of Paul V. to divers persons. 1610-1620. 
J, III., 75 . Miscellany. 1604-1621. 
Group III. Letters, instructions, relations, etc., under Urban VIII. 1623- 
1644. 
M, I., 21 . From Agucchio to Corsini, nuncio in France. 1621-1629. 
A, I., 19 - 20 . Alexander VII. to Cardinal Barberini. 
L, III., 56 - 57 . Letters to nuncios. 1634-1642. 
M, I., 24 . Letters to divers persons. 1642. 
R, I., 16 . Letters from Flanders. 1642-1652. 
J, III., 83 - 84 . Instructions and other writings of Urban VIII. 
Group IV. Correspondence of Fabio Chigi (afterward Pope Alexander 
VII.) while nuncio in Cologne. 
Q, II., 46 - 49 . Miscellany. 
Group V. Material relating to the peace of Munster, of which none 
seemed likely to refer to America. 
Group VI. Material relating to the pontificate of Alexander VII. 1655- 
1667. 
C, III., 75 - 78 ; D, I., 1 - 11 . Cipher correspondence with nuncios. 1655- 
1667. 
C, III., 62 . Letters of cardinals, etc., to Alexander VII. 1655-1666. 
F, I., 4 - 41 . Letters from divers persons to Cardinal Mario Chigi. 1656- 
1662. 
E, I., 15 - 50 ; E, II., 31 - 35 . Ciphers to divers persons. 
D, I., 12 . Ciphers to nuncios. 1658-1667. 
E, III., 64 . Letters of Cardinal Mario Chigi to divers persons. 
P, I., 15 . Ciphers to nuncios. 1659-1667. 
N, II., 27 - 28 . Ciphered correspondence with nuncios in Spain. 
E, II., 36 - 38 . Voyage of Flavio Chigi to France. 
