Brahe accepted the ee proposal

and, in 1576 the foundation stone of the castle of Uraienburg (“fortre of the heavens”) was laid. Here, for a period of 20 years, Brahe prosecuted his observations with the most unwearied inoat So = as his munificent patron, Frederick II., lived, Brahe’s position was all that he could have desired, but on his death in 1588 it was greatly changed. For some years, under Christian IV., Brahe was just tolerated; but in 1597 his persecution had grown so unbearable that he left the country altogether, having been the year before deprived of.his observatory and emoluments, After re- ‘siding a short time at Rostock and at -Wandsbeck, near Hamburg, he accepted an invitation of the Emperor ih dolf 11.— who conferred on him a pen- ‘sion of 3,000 ducats—to Benatek, a few miles from Prague, where a new Uranienburg was to have been erected for him; but he died at Prague on Oct. 24, 1601.