The ancestral castles of Thierstein and Homberg were both destroyed in the earthquake of 1356 , and the Thierstein branch of the family now renamed a castle of theirs near Büsserach ( in what is now known as the Thierstein District of the canton of Solothurn ) to Neu-Thierstein . In 1330 , a branch of the Thierstein family , known as Thierstein-Farnsburg , built Farnsburg castle near Ormalingen . They were given Sisgau as a fief from the bishop of Basel . Count Oswald von Thierstein in 1479 received Hohkönigsburg in the Alsace as fief from emperor Frederick III . The Thierstein family was extinct in 1517 , after which Hohkönigsburg fell back to the House of Habsburg
earthquake of 1356
1356 Basel earthquake
House of Homberg