 Henry then passed through Pavia before arriving in Genoa, where he again tried to mediate between the warring factions within the town.During his stay in the city, his wife Margaret of Brabant died.Also while in Genoa he discovered that King Robert of Naples had decided to oppose the spread of imperial power in the Italian peninsula, and resumed his traditional position as head of the Guelph parties, as Florence, Lucca, Siena and Perugia all declared their support for Robert.