Page "Johannes Kepler" Paragraph 26

Officially, the only acceptable religious doctrines in Prague were Catholic and Utraquist, but Kepler's position in the imperial court allowed him to practice his Lutheran faith unhindered.

The emperor nominally provided an ample income for his family, but the difficulties of the over-extended imperial treasury meant that actually getting hold of enough money to meet financial obligations was a continual struggle.

Partly because of financial troubles, his life at home with Barbara was unpleasant, marred with bickering and bouts of sickness.

Court life, however, brought Kepler into contact with other prominent scholars ( Johannes Matthäus Wackher von Wackhenfels, Jost Bürgi, David Fabricius, Martin Bachazek, and Johannes Brengger, among others ) and astronomical work proceeded rapidly.