For Troidl there are 69 on Yasni with different names.
Among the most common last names on Yasni Troidl is on position 4673.
Troisi is trained by punching, ie consider a Binnenschff with the help of a horse or oxen upstream. This happened in the Middle Ages in all navigable rivers, especially in the salt and iron ore shipping.
(Sent from: Roland Troidl)