Page "Peter Oluf Brøndsted" Paragraph 4

However, as he began to arrange and prepare for publication the vast materials he had collected during his travels, he found that Copenhagen did not afford him the desired facilities, and so he exchanged his professorship for the office of Danish envoy at the papal court in 1818, and took up residence in Rome.

In 1820 and 1821 he visited Sicily and the Ionian Islands to collect additional materials for his great work.