228 
Private Libraries in Rome 
Aldobrandini. Clement VIII. of this family was pope from 1592 to 1605, 
and Cardinal Aldobrandini was active for many subsequent years. Their 
archives are partly in the possession of the family, partly in the Ilorghese col¬ 
lection, 7 and are extensive. 
Colonna* Permanently connected with the Church, the interests of the 
Colonna family have rarely strayed beyond the Mediterranean, and their ar¬ 
chives, the most extensive princely archives in Rome, are not apt to be useful 
for American history. In the Barberini library, 3166 , folios 45-64, is a cata¬ 
logue of all the books in Latin script in their library. 
This list, not a very trustworthy one, contained no relevant items. 
Boncompagni. This library, formed by D. Baldassarre Boncompagni, and 
of which a description by Enrico Narducci was published in 1892 (pp. viii, 
520), is chiefly composed of manuscripts of a mathematical character. The 
following items of possible interest were, however, noted: 
118 . ff. 2-6. Gargani, “ Notizie intorno alia Famiglia Toscanelli ”. 
247 . “ Instruttioni data a nome della Santita di Nostro Signore del Cardinale 
Ludovisi Nipote a i Nuntii e Ministri.” 1621-1623. 940 pp. 
Boncompagni-Ludovisi. Ugo Boncompagni was pope as Gregory XIII. 
from 1572 to 1585, and Alessandro Ludovisi, as Gregory XV., from 1621 to 
1625. The two families subsequently united and their archives are now in 
the Palazzo Piombino, 39 Via Scrofa. 9 They are opened to scholars properly 
introduced. 
Gay. Mr. H. Nelson Gay has collected in the Orsini palace an important 
body of material for the history of the Risorgimento, among which are manu¬ 
scripts bearing on the relations between the United States and Italy during 
that period. 
Odescalchi. Innocent XI. of this family was pope from 1676 to 1689. 
Archives are in the possession of the family at their palace on the Piazza SS. 
Apostoli. Innocent XI. was much interested in American affairs, especially 
in relation to Spain. 
Rospigliosi . 10 Clement IX. of this family was pope from 1667 to 1669. 
Archives are in the possession of the family in their palace on the Quirinal 
hill. Clement IX., before his elevation, was the member of the Propaganda 
specially charged with the affairs of the Spanish empire. 
Santa Croce. This family was active in the diplomacy of the papacy in the 
last half of the sixteenth and the first part of the seventeenth century. I do 
not know where their archives are, but Pastor in 1903 reported some in the 
possession of the family. The same is true of the Sforza Cesarini 11 and the 
Spada 12 archives, and the Azzolini and Corvisieri collections, 13 which would, 
perhaps, be a shade less likely to contain American material. 
Tolomei. This collection is inventoried in indice 218 of the Vatican ar¬ 
chives, which made plain the absence of American material. 
7 See Bulletin de la Commission Royale d’Histoire, LXXVIII. 59. 
8 P. Kehr, in Romische Quartalschrift, XV. 175-176. 
9 These archives yielded nothing for P. O. von Tome’s life of Cardinal Como, secre¬ 
tary of state under Gregory XIII., and probably have nothing for American history. 
Some material on the foundation of the Propaganda might be found. 
10 These have been used for historical work by Ch. Terlinden, Le Pape Clement IX. et 
la Guerre de Candie d’apres les Archives Secretes du Saint Siege (Louvain-Paris, 
1904). 
11 Kehr, Papsturkunden in Rom (Gottingen, 1901), pp. 247-248. 
12 Apparently not the collection referred to on page 71. 
13 Kehr, Papsturkunden in Rom, pp. 247-248. The latter is now in the Biblioteca Val- 
licelliana; Arch, della R. Soc. Rom. di Stor. Pat., 1908, pp. 409-430. 
