After Thalberg returned to Paris in the beginning of February 1837, a rivalry developed between him and Liszt. On 4 February Thalberg heard Liszt play in concert for the first time in his life. Thalberg was stupefied. While Liszt then gave over a dozen concerts, Thalberg gave only one concert on 12 March 1837 in the Paris Conservatoire, and a further concert on 2 April 1837. In addition, on 31 March 1837, both Liszt and Thalberg played at a benefit concert to raise money for Italian refugees.