Levant, were instructed to purchase relics of antiquity without regard for cost, and to forward them to Florence. The most acceptable present that could be sent to a king was a copy of a Roman historian. The best credentials which a young Greek arriving from Byzantium could use to gain the patronage of men like Palla degli Strozzi was a fragment of some ancient; the merchandise ensuring the largest profit to a speculator who had special knowledge in such matters was old parchment covered with crabbed characters. [Footnote 98: Mur. xx. 169. Cf. the Elegy of Landino quoted in the notes to Roscoe's _Lorenzo_, p. 388.] [Footnote 99: Voigt, p. 138.] [Footnote 100: See Voigt, p. 139, for this story.] The history of the foundation of libraries will form part of the next chapter. For the present it is requisite to mention some of Poggio's fellow-workmen in the labour of collection. Among these a certain Nicholas of Treves, employed to receive monies due to the Papal Curia in Germany, deserves a place, seeing that in 1429 he sent the most complete extant copy of Plautus to Rome. Bartolommeo da Montepulciano, following the lead of Poggio, pursued investigations while at Constance, and discovered the lost writings of Vegetius and Pompeius Festus. In 1409 Lionardo Bruni chanced upon a good MS. of Cicero's letters at Pistoja, and about the year 1425 a magnificent capture of Cicero's rhetorical treatises was made at Lodi in the Duomo by Gherardo Landriani. The extant works of Tacitus, so ardently desired, were not collected earlier than the reign of Leo.