I reader sends this along.
"Since as we have learned from your report, it sometimes happens because of the scarcity of water, that infants of your lands are baptized in beer, we reply to you in the tenor of those present that, since according to evangelical doctrine it is necessary to be reborn from water and the Holy Ghost (John III:5) they are not to be considered rightly baptized who are baptized in beer."
-Cum sicut ex, Pope Gregory IX to Archbishop Sigurd of Norway