Secunda pars historiae Iherosolimitane Sources

Guidoboni and Comastri (2005:889) note that Secunda Historiae Iherosolimitanae Pars is traditionally considered to be a sort of epitome of the work of Fulk of Chartres [aka Fulcher of Chartres], covering events from 1100 to 1124. Wikipedia, without citing a reference, states Some of the earlier material may be taken from Bartolf of Nangis