In Vienna, Galimberti proved a ready conduit of information to his German counterpart there. In 1889, following the double suicide of the Austrian Crown Prince Rudolf and his mistress at Mayerling, Galimberti kept the German ambassador apprised of the latest information on the case, what one historian calls "highly placed gossip", and he continued to answer related inquiries about the Vatican's rumored denial of Rudolf's request for an annulment of his marriage. Galimberti's name figures in the many investigations of the case, usually in a minor role, though one early account said that Galimberti had received Rudolf's annulment request and rather than forward it to Rome had it delivered to the Emperor, provoking a family quarrel and the deaths that followed.