What's the Difference Between These 2 Rouget Echezeaux Bottlings

The following two bottles just came up for sale. They are not something I’m considering buying, but I was wondering if anyone could explain the difference between them

2017 Domaine Emmanuel Rouget Echezeaux Grand Cru and
2017 Emmanuel Rouget (Domaine Georges Jayer) Echézeaux Grand Cru

Thanks!

Rouget makes wine from his own grapes (Henri Jayer’s vineyards) and also from Georges Jayer’s grapes.

In a related vein, how is Maison Rouget related to Emmanuel Rouget?

Thanks, the link was informative. Any sense of the differences in taste profile or overall quality between the two?