For now, I'm tinkering with the first clue, trying to link it to Nebo to be sure about the correct decryption of moves.
I am more than certain that the second shell = the coat of arms of Madrid; I simply typed "Madrid cross" into the wiki search and found this:
https://ru.wikipedia.org/wiki/%D0%9D%D0%B5%D1%81%D0%B5%D0%BD%D0%B8%D0%B5_%D0%BA% D1%80%D0%B5%D1%81%D1%82%D0%B0_(%D0%BA%D0%B0%D1%80 D1%82%D0%B8%D0%BD%D0%B0_%D0%91%D0%BE%D1%81%D1%85%D 0%B0,_%D0%92%D0%B5%D0%BD%D0%B0)
It might be worth looking into Bosch; I'd appreciate any help.
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GOD, HOW I LOVE THE ХВ EDITOR
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Lol, the link still doesn't work... Anyway, https://ru.wikipedia.org/wiki/Несени...на_Босха,_Вена)