When general-in-chief on the frontier, his salary was three hundred florins monthly; "not enough," as he said, "to pay the servants in his tent," his necessary expenses being twenty-five hundred florins, as appears by a letter to his wife.

His embassy to carry the crown to Ferdinand, and his subsequent residence as a hostage for the treaty in Paris, were also very onerous, and he received no salary; according to the economical system in this respect pursued by Charles and Philip.

In these two embassies or missions alone, together with the entertainments offered by him to the court and to foreigners, after the peace at Brussels, the Prince spent, according to his own estimate, 1,500,000 florins.

He was, however, although deeply, not desperately involved, and had already taken active measures to regulate and reduce his establishment.

His revenues were vast, both in his own right and in that of his deceased wife.