Is there any historical documentation about witches using windows for divination? I have seen some rabbinic scholars (like Alshich, Albo, Abarbanel, and Saba) ntrepret the Biblical passages concerning Sisersa's mother looking through a window (Judges 5:28) and Abimelekh looking through a window (Gen. 26:8) as referring to them divining by way of an enchanted window.
I have heard of divining via a "mirror on the wall" (ala Snow White, see here), so I'm specifically looking for ancient sources or mentions of a similar practice using a window.