 | Petrus Astronomus, O.Ss.S., (died after 1513), a German by birth, was a Bridgettine monk in Vadstena Abbey, Vadstena, Sweden. In 1506, he created an astronomical... 2 KB (146 words) - 00:53, 13 December 2021 |
 | unfinished medieval (16th century) astronomical clock designed by Petrus Astronomus at Uppsala Cathedral, which had remained unfinished and broken for... 16 KB (1,562 words) - 12:20, 2 March 2024 |