Brooke, Stopford A. "Browning and Sordello." In his The Poetry of Robert Browning, pp. 200-18. New York: AMS Press, 1965.
Draws various analogies between the two poets and their works, including the correlation between their social, political, and religious contexts, and the connection between Browning and the fictional Sordello.
Chaytor, H.J. The Troubadours and England. Cambridge at the University Press, 1923, 164 p.
Examines the influence of the Provençal troubadours on the Middle English lyric.
Church, R. W. "Sordello." In his Dante and Other Essays, pp. 221-60. London: Macmillan and Co., 1891.
Analyzes Browning's poem Sordello, acknowledging the obscure and complex nature of the work while emphasizing its underlaying "great and profound idea": contemplation of a failed, though noble spirit.
Egan, Margarita, trans. The Vidas of the Troubadours. New York: Garland Publishing, 1984, 124 p.
Provides translations of the vidas, the biographies of the troubadours, which were originally written in Old Provençal and which often served to introduce selections from the poets' lyrics.
Lindsay, Jack. The Troubadours and Their World of the Twelfth and Thirteenth Centuries. London: Frederick Muller, 1976, 306 p.
Offers verse and prose translations of troubadour poetry as well as descriptive passages detailing background on the poets' lives, and historical and cultural information about the period.