High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Nicholas of Kues (1401 - August 11, 1464), also referred to as Nicolaus Cusanus and Nicholas of Cusa, was a cardinal of the Catholic Church from Germany (Holy Roman Empire), a philosopher, jurist, mathematician, and an astronomer. He is widely considered one of the great geniuses and polymaths of the 15th century. He is today recognized for significant spiritual, scientific and political contributions in European history, notable examples of which include his mystical or spiritual writings on 'learned ignorance' (and mathematical ideas expressed in related essays), as well as his participation in power struggles between Rome and the German states of the Holy Roman Empire.