Luigi Villari, 1911 Encyclopædia Britannica, Volume 10… (1911)
“ Feeling his position insecure, the duke asked for and obtained an Austrian garrison, but on the outbreak of revolution throughout Italy and at Vienna in 1848, further disorders occurred in the duchy, and on the 20th of March he fled with his family to Mantua. A provisional government was formed, and volunteers were raised who fought with the Piedmontese against Austria. But after the Piedmontese defeat Francis returned to Modena, with Austrian assistance, in August and conferred many appointments on Austrian officers. ”
