In 1573, he was teaching at the Michaelisschule in Lüneburg;[3] and on 23 June, by his own account, the political future of Europe was revealed to him in a vision.
[4] In 1582, Grebner was in England and presented Elizabeth I with a manuscript copy of his major work, Sericum Mundi filum.
[4] The writings of Grebner were a major source for the "leonine prophecies", involving an anti-papal "Lion of the North".
[8][9][10] Grebner's prophecy was not generally known to German speakers until 1619, with the printing of his Conjecturen, predicting the New Jerusalem in 1624.
[11][12] With its vision of Antichrist destroyed and universal monarchy, it was printed in the second edition (1625) of the Confessio Fraternitatis, a basic Rosicrucian document.
[22] The 1680 work of Israel Tonge, The Northern Star the British Monarchy, drew on Grebner among other sources.