There is good anchorage between Barry and Sully islands.

(France), which some historians regard merely as the fantastic idea of a visionary, was probably a scheme of his great minister Sully to avert by a federation the conflict which he probably foresaw would break out sooner or later between Catholic and Protestant Europe, and which, in fact, broke out some fifteen years later in the Thirty Years' War.

Sully in his Economies royales attributes to his master the "great design" of constituting, after having defeated Austria, a vast European confederation of fifteen states - a "Christian Republic" - directed by a general council of sixty deputies reappointed every three years.

The most illustrious member of the Bethune family was Maximilien, baron of Rosny, and afterwards duke of Sully, minister of Henry IV.

His fate has been commemorated in numerous plays, pictures and poems, notably in the fine epilogue of Sully Prudhomme, the Stello of A.