中世纪後期阿尔卑斯地区，掌握山巅权益的施维茨‧乌里‧翁特瓦登３个自治邦互为同盟还成立了『盟约团』，奥地利公哈布斯堡家公弟利奥波德率领军队占领了三邦，派了沃夫朗来镇守哨所，由於至今无人能够躲过他的盘查，於是那哨所被称为「狼口」。

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