[14] Ferdinand of Aragon = Isabella of Castile +1516 | +1504 | +---------------+------------------------+----------------+ | | | | John = Margaret | | | +1497 _d._ of | | | Maximilian | | | | | | Joanna = Archduke Philip | | +1555 | _s._ of Maximilian | | | +1506 | | | Mary = Emanuel | | of Portugal | | +1521 | | | Charles V. Catherine (1) betrothed to Prince Arthur. (2) Married Henry VIII. [15] For the position of these districts, see Map of Italy. [16] Cf. especially, Le Combat singulier entre Bayard et Don Alonzo, and Le Combat des treize contre treize, _La tresjoyeuse Histoire des gestes du bon Chevalier_, c. xxii.-xxiii. Ed. Petitot, vol. 15. [17] His son John d’Albret, king of Navarre in right of his wife, had allied himself with Ferdinand, fearing the claims on Navarre of the younger branch, then represented by Gaston de Foix, nephew of Louis XII. [18] The most important of these petty states in Alexander’s time were the Duchy of Ferrara in the hands of Ercole, Marquis of Este. Bologna, „ Giovanni Bentivoglio. Imola and Forli, „ Caterina Sforza, niece of Ludovico il Moro, and widow of Girolamo Riario, nephew of Sixtus IV. Rimini, „ Pandolfo Malatesta. Faenza, „ Astorre Manfredi. Pesaro, „ Giovanni Sforza, distant cousin of Ludovico and first husband of Lucrezia Borgia. Camerino, „ Giulio Cæsare Varano. Duchy of Urbino, „ Guidobaldo di Montefeltro. Sinigaglia, „ Francesco Maria della Rovere, a boy.