I have the following DOM structure / HTML, I want to get (just practicing…) the marked data.

The one that is under the h2 element. that div[@class=”coordsAgence”] element, has some more div children below and some more h2’s.. so doing:
div[@class="coordsAgence"]
Will get that value, but with additional unneeded text.
UPDATE: The value (From this example) that I basically want is that: “GALLIER Dennis” text.
It seems you want the first text node in that div:
should do it.
Note that this assumes that there is actually no whitespace between those comments inside
<div class="coordsAgence">; otherwise that whitespace will constitute additional text nodes that you’ll have to account for.