for the troops of the Charles III, constable of Bourbon, the last of the great feudal lord to oppose the king of France. Content: the reason of two treaties The Treaty of Burgos and the refusal of feodality In June 1524, Leonard Grimaldi was sent as by Augustine Grimaldi as his procurator to Sapin to negotiate with the imperial chancery. A treaty was signed in Burgos on June 7, which stipulated not only the imperial protection granted to Monaco but its first article stipulated that the Lord of Monaco and his heirs should pay tribute to the Emperor thus transforming a mere protection into a vassality as form of protectorate. Despite his fragile position in the negotiation, Augustine Grimaldi firmly protested this disposition. Augustinecould count on the support of the constable of Bourbon, whom he helped continuously as the imperial forces retreated from Provence and heroically resisted in the port of Marseille. The Treaty of Tordesillas and the consecration of the freedom of Monaco On November 15, 1524, the treaty of Burgos was ratified in Tordesillas which included the protection of Augustine Grimaldi and explicitly mentioned that Monaco was absolutely independent from any superior powers, with any contrary disposition being void. The Spanish Emperor considered the Lord of Monaco as his "friend". Through this alliance, a pension was given to Monaco in times of war and a garrison would be recruited and paid for by the Emperor to protect it as a visible sign of the "imperial immediacy" on Monaco. Indemnities would be given for any goods seized by the Kingdom of France in retaliation. Finally, the constable of Bourbon would oversee the transfer of properties from Barthélémy Doria to the House of Grimaldi. Various privileges were obtained for the Lord of Monaco to obtain ecclesiastical benefits from Sardinia and Sicily. On April 10, 1525, Augustine Grimaldi ratified by way of sealed letters patent an act, which, for the next 118 years, would place Monaco in the orbit of Spanish politics. Aftermath Unhoped for success at the Battle of Pavia Through the strategic position of Monaco, the troops of the Empire were able to secure a strong connection between Spain and the Milanese troops, which was an element in the decisive victory of the Habsburgs of Spain at the Battle of Pavia in February 1525. Charles Quint expressed his gratitude to Augustine Grimaldi for his support. Tragic death of Barthélémy