An ultimatum was presented ordering Turkey within twenty-four hours to dismiss the French ambassador, hand over the Turkish fleet, and make peace with Russia.
In the year 991 he was associated with archbishop Sigeric in the conclusion of a peace with the victorious Danes from Maldon, and in 994 he was sent with Bishop 2Elfheah (Alphege) of Winchester to make peace with Olaf at Andover.
He was able to make peace with the triumvirs, but sacrificed his property and much of his beloved library.
Alain Fergent, one of his successors, defeated William in 1085, and forced him to make peace.
Some little aid was sent from western Europe, but soon Robert was compelled to make peace with his chief foe, John Ducas Vataces, emperor of Nicaea, who was confirmed in all his conquests.