There are other numerology systems than the one Cheiro "invented". Compared to the Danish alphabet (and any other not-english alphabet), which contains different letters, Cheiro's system has some uncertainty as there are different opinions on how these three letters should be translated into numbers.
Other systems says that it's the birth certificate that is crucial to one's life and future. In these systems it is perfectly legal to spell the name with other (more) letters, even though the name is pronounced in the same way. Eg. "Michaael" with 2 a'er and "Hannne" with 3 n's. In an explanation of the numbers in such a name, a diamond-like figure is also included, where each name has its certain place in the diamond shape.
A third and more interesting, however, is a system developed by Norman Shine, based on the same principles as Cheiro. However, in this system, the three small Danish letters have been taken into account.
In this system, the letter "a" has the value 1, the letter "b" the value 2, etc. in the frequency 1 to 9: (The danish alphabet)