Chiron made a very close approach to Saturn in the second decade of the eighth century, and a very close approach to Uranus in the ninth decade of the sixth century. The combined effect of these gravitational yanks changed its orbit considerably.
The net effect of these close encounters is that the position of Chiron is somewhat uncertain between 586 and 718 AD, and very uncertain before 585 AD
In other words, any map of the sky for 14 BC that contains Chiron must be considered speculative, as we have no way of knowing for sure exactly where Chiron was at that time.