For Kubenz there are 4 on Yasni with different names.
Among the most common last names on Yasni Kubenz is on position 4523.
The last name is from the Sorbian Kubenz. After Chistianisierung of the Sorbs (Slavic tribe, formerly located between Elbe / Saale and Oder / Queis) many chose a surname that is similar to a saint. Shall be considered as very likely that "Kubenz" a variant of Jacob (St. James) is. The same is true of similar modifications as Kubitz, Kubasch etc.. The root word "Kub" is the shortening of Jacob.
(Sent from: Marcel Kubenz)