After the death of the last Count of Toggenburg, Frederick VII, in 1436 the fief passed back to the Austrians who granted it to the Brandis family to hold for the Bishop of Chur.
A mediator from the Three Leagues determined that the Brandis family needed to repay the loan and that the repair costs would be shared equally.
[3] In 1462 the Duke of Austria acquired the castle and estates from the Bishop of Chur and sold it to Ulrich von Brandis, who began rebuilding.
In 1467 the duke expanded the estates attached to Marschlins by adding Malans, Untervaz and Valzeina.
In 1498 the Brandis family began trying to sell the castle and estates, but the outbreak of the Swabian War in the following year broke the deal.
After the war, in 1509, they pawned the castle to Ulrich Goeldin and in 1518 the Gugelberg family bought it outright.
In 1633 the rather dilapidated structure was acquired by Ulysses von Salis, a member of the Salis-Soglio family, who adopted the name Salis-Marschlins.
Two years later he began renovating the castle and turned it from a more military fortification into an elegant house with a french garden.
[6] The castle is located about 1 kilometer (0.62 mi) north-east of Igis village, on a flat plain but about 250 m (820 ft) from a steep cliff.
[3] The current triumphal arch like gate is in the center of the western wall, but was originally further south.
The cocklestove was built in 1638 by the Pfau workshop and the cabinets decorated with the alliance arms of Heinrich Hirzel-Yolanda von Salis are from 1674.