Rorgo Fretellus

[3][4] The Descriptio de locis sanctis survives in several recensions, all descended from a model composed by Fretellus in 1128–1132 or possibly as early as 1119–1121.

[3] A third version was produced at the Avignonese papal curia between 1356 and 1362, when Cardinal Nicolau Rossell incorporated into a copy of the Liber censuum.

It incorporates much earlier material to which Fretellus had access in the library of the cathedral of Nazareth, including possibly Pseudo-Eugesippus' Tractatus de distantiis locorum Terrae Sanctae.

Although "it does not tell us very much about the conditions in the towns and villages under Frankish rule", it is still a useful source on the learning to which a crusader cleric had access in the twelfth century.

[6] It is probable that in this famous passage Fretellus has simply combined his Biblical geography (Judaea) with the name of the former Arab province (Filasṭīn).