The paper investigates the syntactic structure of wh-clauses in late Latin. The results show that, in sentences with a wh-phrase as direct object, the interrogative operator reaches FocP in the left periphery, with the finite verb raising to the Foc head. This spec-head relation accounts for why subjects and dislocated XPs (like topics or focus elements) can not be intervening constituents between the object wh-phrase and the verb. For wh-clauses in which the interrogative operator is an adjunct, the hypothesis is that the wh-phrase occupies Spec,IntP. Here, the verb does not move to the CP-field, thus explaining the possibility of intervening subjects and interpolated XPs between the adjunct wh-element and the verb. These results show that the verb second (V2) property of V-to-C movement, as seen in several old Romance languages, can be derived from late Latin, and not exclusively from a supposed influence of Germanic languages, as is assumed in the literature.