It is quite possible that Jesus had heard of the Germanic Arminius - but Arminius had not heard of Jesus.
The destruction of an eighth of the entire army of the superpower of the time by Arminius in the year 9 was probably the talk of the day throughout the entire Roman Empire, even in the somewhat remote province of Judea. Jesus, on the other hand, was probably not even a “local celebrity” at the time. Arminius died around 21 AD and was probably unaware of Jesus' story.