CHAPTER XI
1476. Dec. 26. Assassination of Duke Galeazzo Maria Sforza 234
" His character by Sanzi 235
1477. Federigo prepares to march upon Milan, but attacks Jan. Montone 236
1473. Count Girolamo Riario invested with Forlì and Imola 236
" He is betrothed to Caterina Sforza 236
" Her education and character 237
1477. Their marriage 237
" The friendship of Sixtus for Lorenzo de' Medici soon interrupted 237
" Revolutions in Florence usually sprang from family feuds 239
" Origin of the Pazzi conspiracy 239
1478. April 26. It explodes; Giuliano assassinated 240
" Italian conspiracies and politics 241
" The Pope is compromised 242
" Lorenzo appeals to his fellow citizens 243
" The parties to a new war in Tuscany 243
" The Duke's letter to an astrologer 244
" The campaign narrated by Federigo 245
" He breaks his leg 247
" Dec. 23. He goes to the baths of Petriolo 247
1479. May 23. He leaves Petriolo 247
" Defection of Roberto Malatesta 247
" The Florentines successful at Thrasimene, but worsted in the Val d'Elsa 247
" Nov. 12. Colle surrenders 248
" " Its siege painted on a _bicherna_ (note) 248
" State of the Italian artillery 248
" Notices of it by Duke Federigo 249
" Nov. 20. He goes to Siena and receives a donative 251
" " 27. A truce for three months 251
" The unfortunate position of Florence, and disorganisation of its army 251
" Lorenzo de' Medici goes to Naples to negotiate a Dec. 6. treaty 252
1480. Mar. 25. Peace proclaimed 252
" Dec. Humiliation of the Florentines before Sixtus 253
1479-1480. Intrigues of the Duke of Calabria at Siena 253
" " Federigo winters at the baths of Viterbo 253
" " He receives the Sword and Hat 253
1480. May 19. His letter to the magistrates at Siena 254
" He returns home 254
" Count Girolamo takes possession of Forlì 254
" Description of his Countess 255
1474-1479. Progress of the Turks in Europe 256
1480. Aug. 11. They take Otranto by concert with the Venetians 257
" Consequent panic in Italy, and new combinations of its powers 257
" Federigo summoned by Ferdinand, but detained by Sixtus 257
1481. May 3. Death of Sultan Mahomet 257
" Aug. 10. Otranto recovered from the Turks 257