The King of the Belgians had not been able to resist attempting to make use of his family position to further his diplomatic ends.

But, indeed, why should there be any question of resisting?
Was not such a course of conduct, far from being a temptation, simply "selon les regles ?" What were royal marriages for, if they did not enable sovereigns, in spite of the hindrances of constitutions, to control foreign politics?
For the highest purposes, of course; that was understood.

The Queen of England was his niece--more than that--almost his daughter; his confidential agent was living, in a position of intimate favour, at her court.

Surely, in such circumstances, it would be preposterous, it would be positively incorrect, to lose the opportunity of bending to his wishes by means of personal influence, behind the backs of the English Ministers, the foreign policy of England.
He set about the task with becoming precautions.

He continued in his letters his admirable advice.