Nicolaus Copernicus Albert, Alexander Jagiellon, and Sigismund I the Old. He was a friend and key advisor to each ruler, and his influence greatly strengthened the ties between Warmia and Poland proper. Watzenrode came to be considered the most powerful man in Warmia, and his wealth, connections and influence allowed him to secure Copernicus' education and career as a canon at Frombork Cathedral. Copernicus is postulated to have spoken Latin, German, and Polish with equal fluency; he also spoke Greek and Italian, and had some knowledge of Hebrew. The vast majority of Copernicus's extant writings are in Latin, the language of European
Nicolaus Copernicus common in the period, the spellings of both the toponym and the surname vary greatly. Copernicus "was rather indifferent about orthography". During his childhood, about 1480, the name of his father (and thus of the future astronomer) was recorded in Thorn as "Niclas Koppernigk". At Kraków he signed himself, in Latin, "Nicolaus Nicolai de Torunia" (Nicolaus, son of Nicolaus, of Toruń). At Bologna, in 1496, he registered in the "Matricula Nobilissimi Germanorum Collegii, resp. Annales Clarissimae Nacionis Germanorum", of the "Natio Germanica Bononiae", as "Dominus Nicolaus Kopperlingk de Thorn – IX grosseti". At Padua he signed himself "Nicolaus Copernik", later