Pisa is the home city of the tyrant Uggucione. Uggucione is a staunch Ghibeline, and a sometime ally of Castruccio in his attempt to return to Lucca. He is very active in his campaigns of war against the Guelphs in Florence and Lucca.
Castruccio accompanies King Edward of England to Chelsea on a hawking party. Castruccio and another noble get into a quarrel over their birds, and Castruccio stabs him with a stiletto, leading to his exile from England and Alderigo's brief imprisonment.
Beatrice's trial takes place "in a large square of Ferrara, under the walls of the garden of the convent of St. Anna, and before the gates of the monastery to the care of whose monks the Judgement was intrusted" (217). This is the convent where the true life Beatrice moved into in 1257 and lived until her death in 1264
Abruzzi, also called Abruzzo, was a hill town in the Middle Ages. It was an agricultural economy, relying on livestock, farming, shepherds, etc. This is where Euthansia is wandering after her younger brother dies:
"You have not studied the histories of ancient times, and perhaps know not the life that breathes in them; a soul of beauty and wisdom which had penetrated my heart of hearts. When I descended the hills of Abruzzi, and first saw the Tiber rolling its tranquil waters glistening under the morning sun; I wept" (149).
After gaining monetary support in Holland/Flanders, Castruccio journeys to the French camp where he finds Scoto. (98)
Here we see Castruccio really begin his journey into warfare and what will eventually put him fully at odds with Euthanasia (and what will keep them fatally irreconciable).
While traveling with Pepi, the two pass through Turin. Shortly before this, Pepi gives his speech against Liberty and, when they are in Turin, Castruccio and him part ways. (114-115)
Castruccio takes part in a hawking party in Chelsea. Tempers flair, and one of the nobles strikes Castruccion in the face after a sarcastic remark. Castruccio replies "by blood, and not by words, are blows to be avenged!" then "drew his stiletto, and plunged it into the bosom of his adversay" (95). King Edward saves him from retribution, but send him to a vessel headed to Holland by way of the Tower. The barons seize Alderigo, intending for him to take the punishment before Edward pardons him.
King Edward sends Castruccio (by way of Bristol and Cork) to Dublin. Piers Gavaston was in exile, and Castruccio was to bring him back to England. (Page 93). Gavsaton was a fascinating medieval figure. He was close friends with King Edward, who made him Earl of Cornwall, despite his humble background. Gavaston was extremely disliked by the nobles, who conspired to have him exiled on three different occasions. Finally when in 1312 when fighting broke out between the barons and the king, Warwick and Pembroke captured Gavaston, and executed him.
In 1309, Castruccio arrives in London, where he meets his cousin Alderigo. Castruccio soons finds favor with King Edward, which gains him the ire of the other nobles of the court. (Page 88).
After killing a Venetian noble, Castruccio flees Venice for Holland. The ship on which he flees first lands at Ostend (Valperga 96), which (in Castruccio's time) is a coastal "fishing village" (Britannica.com). This is where Castruccio meets an unnamed "rich merchant of Ostend, living in the Italian style, and surrounded by a family, whose language and persons transported him to the plains of Lombardy, or the vallies of his native Tuscany" (97).
