There has been some confusion concerning which of his two brothers (Jean or Paul, both known as sieur de Chantelou) accompanied him to Rome. Roland Fréart himself wrote that "the late M. de Noyers dispatched us, You and my Self (dear Brother)" (Fréart de Chambray 1723, p. xiii of The Epistle, but Roland's epistle is addressed to both brothers, p. x of The Epistle). Blunt 1967, p. 157, says only "Chantelou was sent to Rome to fetch him [Poussin]" (and in the index Chantelou is identified as Paul Fréart de Chantelou). Haskell & Penny 1981, p. 32, identify Roland's companion as Jean. Asfour 1996 identifies Roland's companion as Paul (and gives the date as 1639). Bull 1996 writes that in 1638 Paul became secretary to Sublet de Noyers and "it was in this capacity that he visited Italy (where he may already have spent time with Roland) in 1639 and 1640. On the latter occasion he brought Poussin back to Paris".
