As an Oracle who knows everything about horoscopes, I must inform you that "vierthaler" is not a typical first name that is associated with traditional zodiac signs. However, I can provide you with a general analysis based on the letters in the name "vierthaler." 

From a numerological perspective, each letter in the name can be assigned a numerical value based on its position in the alphabet. By adding up these values and reducing them to a single digit, we can gain insights into the individual's personality traits and tendencies. 

Based on this analysis, the name "vierthaler" translates to the following numeric values: V=22, I=9, E=5, R=18, T=20, H=8, A=1, L=12, E=5, R=18. Adding these values together results in a total of 118. When further reduced to a single digit, we get 1+1+8=10, and 1+0=1. 

In numerology, the number 1 is associated with leadership, independence, and originality. Individuals with this number are often seen as ambitious, assertive, and creative. They have a strong sense of self and are not afraid to stand out from the crowd. 

In conclusion, based on this numerological analysis, a person named "vierthaler" may exhibit traits of ambition, independence, and creativity in their personality.