[49] These Ephemerides, from 1617 to 1620, were published at Linz in 1616. The one for 1620 was dedicated to Baron Napier of Merchiston. Although Kepler's residence at Linz was rendered uncomfortable by the Roman Catholics, who had excommunicated him on account of his refusing to subscribe to some opinions respecting the ubiquity of our Saviour, or, as others maintain, on account of some opinions which he had expressed respecting transubstantiation, yet he refused, in 1617, to accept of an invitation to fill the mathematical chair at Bologna. The prospect of his fortune being bettered by such a change could not reconcile him to live in a country where his freedom of speech and manners might expose him to suspicion; and he accordingly declined, in the most respectful manner, the offer which was made him. CHAPTER III. _Kepler's continued Embarrassments--Death of Mathias--Liberality of Ferdinand--Kepler's "Harmonies of the World"--The Epitome of the Copernican Astronomy--It is prohibited by the Inquisition--Sir Henry Wotton, the British Ambassador, invites Kepler to England--He declines the Invitation--Neglect of Genius by the English Government--Trial of Kepler's Mother--Her final Acquittal--And Death at the age of Seventy-five--The States of Styria burn publicly Kepler's Calendar--He receives his Arrears of Salary from Ferdinand--The Rudolphine Tables published in 1628--He receives a Gold Chain from the Grand Dulce of Tuscany--He is Patronised by the Duke of Friedland--He removes to Sagan, in Silesia--Is appointed Professor of Mathematics at Rostoch--Goes to Ratisbon to receive his Arrears--His Death, Funeral, and Epitaph--Monument Erected to his Memory in 1803--His Family--His Posthumous Volume, entitled "The Dream, or Lunar Astronomy."_ Kepler was kept in a state of constant anxiety from the delay in the Government to pay up the arrears of his pension, while their repeated promises prevented him from accepting of other employments. He had hoped that the affair of the Bolognese chair would rouse the imperial treasury to a sense of its duty, and enable him to publish the Rudolphine Tables,--that great work which he owed to the memory both of Tycho and of Rudolph. But though he was disappointed in this expectation, an event now occurred which at least held out the prospect of a favourable change in his circumstances. The Emperor Mathias died in 1619, and was succeeded by Ferdinand III., who not only continued him in the situation of his principal mathematician, with his former pension, but promised to pay up the arrears of it, and to furnish the means for publishing the Rudolphine Tables.