Daniel,

Attached, please find my comments to the last version. I have only 3 comments, 2 of which are essentially the same.

1. You mention that J is a "super-exchange". How do you know that? You don't elaborate nor give a reference. Then, later in the discussion, you claim that the exchange is not RKKY, but has "additional contributions". Additional to what? And what about the super-exchange you mentioned earlier in the manuscript? And why do you discuss RKKY at all? In short, when you discuss the exchange interaction you should a) be consistent, and b) give either evidence or reference that support the claim.
2. I did not understand the causality in this:
   "Equation , as formulated above, describes a layered tetragonal AFM. Its success in modelling the temperature evolution of the RE = Gd magnetic moment despite its monoclinic structure implies that the dominant in-plane interactions are between nearest neighbors, as the nearest neighbor structure of both the base centered monoclinic and tetragonal lattices is similar (coordination number is 4 in both cases)"