4:13 in 2nd video – probably referring to Rachel Erlanger’s The Unarmed Prophet: Savonarola in Florence (1988) and Pasquale Villari’s Life and Times of Girolamo Savonarola (1909); see also Leonard Ravenhill’s Sodom Had No Bible, ch on Savonarola; James Gilchrist Lawson’s Deeper Experiences of Famous Christians, ch 2.