In Maximilian's fishing book from 1500, the Heiterwanger and Plansee are described as two particularly important lakes for the sovereign's hunting and fishing pleasures. However, the Stams monastery insisted on its rights and was granted a limited fishing right, which was confirmed in a contract of 1631 by Archduke Leopold V.
Maximilian's fishing book from 1500 describes the Heiterwanger and Plansee lakes as important for hunting and fishing enjoyment of the sovereign, while the Stams monastery asserted its rights to a limited fishing permit confirmed by Archduke Leopold V in 1631.