 He regained many of the monastery estates in order to build up the material base of the monastery, providing funds for the institution's maintenance and further development.Thanks to his untiring activity, by 1594—only eight years after Lohelius's appointment—a twelve-member community of monks could live in the monastery once more.In 1612 Jan Lohelius became the archbishop of Prague, his work at Strahov then being continued by the new abbot, Kašpar Questenberg.