​​Nicholas​ of Cusa (1401 – 11 August 1464), also referred to as Nicholas of Kues and Nicolaus Cusanus (/kjuːˈseɪnəs/), was a German Catholic - ​Nicholas​  cainal ,  philosopher ,  theologian ,  mathematician ,  astronomer  and  lawyer .

One of the first German proponents of Renaissance humanism, he made spiritual and political contributions in European history. A notable example of this is his mystical or spiritual writings on "learned ignorance," as well as his participation in power struggles between Rome and the German states of the Holy Roman Empire. Nicholas of Cusa wrote De Pace Fidei (On the Peace of Faith) on establishing a Concord of Religions.