The complex and controversial king of Sardinia-Piedmont from 1831 to 1849, Charles Albert helped inspire the growing drive for Italian independence. In 1848, the spread of revolutionary ideas forced him to grant a constitution. Seeking to lead the liberation of Italy, he went to war with Austria that same year, and again in 1849, but was twice defeated. After abdicating in favor of his son, he went into exile and soon died. Charles was called the “number one enemy” of what? Discuss