In a previous post we have discussed the Sosa system for numbering ancestors.
Today we will review the system for numbering descendants. This method was developed by the late Vicente de Cardenas y Vicent, “Chronicler King of Arms" of the Kingdom of Spain. His method is very convenient as it allows a unique identifier for each descendant and at the same time indicates the family relationship.
The system gives a number to each generation divided by a forward slash. The base person will be 1/ and his first born will be 2/1. The same way his brothers and sisters will be 2/2, 2/2, 2/4 etc.
In the third generation, the first grandson of the firstborn of the base person will be listed with the number 3/11, and his brothers will be 3/12, 3/13 etc. The sons of the second son will be numbered as 3/21, 3/22, etc. In summary, the 3 before the slash documents the generation, the first number the descendant of the base person and the second number the ordinal number of his sons or daughters.
The fourth generation will follow the 4/ and we can continue as many generations as we need from the base person.