Over the following century it was expanded toward the north, but it remained generally unchanged until the rise of Kaspar Stockalper.

After studying at the university in Freiburg im Breisgau from 1627 to 1629, he returned to Brig and began building an extensive trading empire.

[2] At the peak of his power, Kaspar employed around 5,000 people (at that time Brig only had about 900 residents).

[3] Between 1630 and 1640 Kaspar expanded the Stockalper House toward the south with a great hall, chapel and other construction.

The chapel altar is black with silver reliefs depicting the Adoration of the Magi and the Coronation of the Virgin, both of which were the work of Samuel Hornung of Augsburg in 1655.

In 1679 the communities of Visp, Leuk, Sierre and Sion rose up against him and drove him into exile in Domodossola.