As you can see, the earliest European dictionary on the Chinese language is the 1593 Spanish Doctrina Christiana en letra y lengua china (1593), and the Dictionarium Sino Hispanicum (1604), which was discovered back in 2017.
Mandarin Chinese as we know won’t come into existence until the late 1800s, and the original Mandarin (based on the Wu languages) was first recorded by Jesuits such as Matteo Ricci in the Portuguese-Chinese dictionary (1588).
So the first documentation of Holo languages by Europeans was written just 5 years after the first documentation of Old Mandarin.