Guercino may well have left Cento with an introduction to Patrizi from his enthusiastic patron and admirer in Ferrara. 1617), may have become familiar with his work through his predecessor as papal treasurer, Cardinal Jacopo Serra. Patrizi, who at his death owned Guercino's copper of St Francis Preaching to the Birds ( c. At the time, the palace was still owned by Costanzo Patrizi, treasurer to Pope Paul V. ' Mahon supposed that the fresco of the Abduction of Rinaldo at the Palazzo Costaguti was executed soon after arrival in Rome in May 1621, that is, before he embarked on the decorations in the Casino Ludovisi.