Santa Cecilia in Trastevere
Lenoncourt was created a Cardinal Priest in the Consistory of 20 December 1538 by Pope Paul III. He was admitted to Consistory and given his red hat on 19 March 1540, and on 7 October 1540 he was assigned the "titulus" of Santa Anastasia. On 10 October 1547 he was translated to the "titulus" of Sant'Apollinare, and on 11 December 1555 to Santa Cecilia in Trastevere.