 Complete the following phrase:  For many years, Višnjić travelled as a vagrant throughout the Balkans, reaching as far as Shkodër. At first, he begged in order to earn a subsistence living, but soon his storytelling abilities attracted the attention of a number of influential figures, including Ivo Knežević, a nobleman from Semberija. Around 1798, Višnjić married Nasta Ćuković, who hailed from an affluent family. The marriage produced six children, several of whom died in infancy. In 1809, Višnjić left eastern Bosnia, crossed the Drina and ventured into Serbia, which beginning in 1804, had been the site of a violent anti-Ottoman 