How to query multiple lists using Content Query WebPart (SharePoint 2013)

Question

On root site I have Country Sub site it contains multiple Sub sites with country name like (ABC, DEF) each sub site contains calendar list.

• root site

  • Country

    - ABC 
    - DEF
    - HIJ
    - XYZ 
    

on root site I have Content Query web part, Now I am trying to displays data from multiple Calendar lists .

So is that possible to query multiple list using Content query webpart? If not please suggest something.

Answer 1

It is possible to query multiple subsite with a content query web part.

You only need to find the correct match (display template) or be able to edit in XML the one that is closer.