Recounted immortally in the glowing pages of Froissart, is the story of Pembroke's hopeless battle with the Spanish fleet. Confiding in the skill and valor of his soldiers and bestowing the title of chevalier on every man among them in the last hour before the combat, he gave the signal to advance. It was dawn and the tide flowed full, when, with a favoring wind, the forty great Spanish vessels, bearing the floating pennons of Castille, advanced to the sound of fife and drum in battle line upon the English fleet. Arrived at close quarters, and grappling Pembroke's ships with chains and iron hooks, they poured down from their tall towers a rain of stones and lead upon the lower and exposed decks of the English, who with swords and spears sustained the fierce attack all day until darkness fell. With the twenty-two newly-made knights who valiantly defended Pembroke's ship was Jean de Gruyère, and when at last, grappled by four great galleons, they were boarded and every resisting arm subdued, he was taken prisoner with Pembroke. On another vessel, fighting as bravely, Othon de Grandson was also taken prisoner and with Jean de Gruyère was transported in captivity to Spain. Dearly paying for their ambition and their new titles, they were furnished in recompense for their valor with lands in Spain by a Burgundian noble, and by industrious commercial enterprise paying their ransom and their debts, after two years regained their liberty and their homes.
Rodolphe IV, reigning count of Gruyère, displayed in his long career no quality worthy of his generous and high spirited father, no trace of the conciliatory wisdom or devoted piety of his mother. Calculating in his marriages, he was unjust and even dishonest with his people, whom he forced to pay twice over for their exemptions and their privileges. Still dishonestly withholding the signed and purchased acknowledgement of their new privileges from his subjects, he was surprised alone at night in the castle by a doughty peasant, who forced the paper from his unwilling hands and threw it out of the window to a waiting confederate. Left in charge of the Savoyard troops who had driven the invading Viscounti from the Valais, and entrusted with the guardianship of the châteaux and prisoners won by the Savoyard arms, he exacted and obtained large sums for his services, although those services consisted in a complete surprise and defeat at the hands of the sturdy inhabitants of the Valais, wherein, except for the heroic defence of the very subjects he had so oppressed, he would himself have perished. From the benefits of the peace which was ultimately established in the Valais, these same loyal subjects were excluded.