Ahnentafel or Sosa-Stradonitz System
Ahnentafel is a German term meaning "Geneological table" and refers to one of several numbering systems used to record individuals on a pedigree chart or in list form. Each individual is numbered based on their relation to the descendant, with the descendant being No. 1. All male ancestors are numbered evenly while all female ancestors are numbered oddly; the father being twice that of the descendant of each generation and the mother being twice that of the descendant of each generation, plus one.
- Paternal grandfather (father's father)
- Paternal grandmother (father's mother)
- Maternal grandfather (mother's father)
- Maternal grandmother (mother's mother)
A chart depicting an individual and their direct ancestors usually including dates and locations of birth, marriage, and death. Also known as a pedigree chart.
A table of a particular individual's descendants.
A version of the pedigree chart including all ancestors. With regard to Geni trees the tree may be viewed as a hybrid of the ascendant chart and descendant chart.
Records of life events kept under governmental authority, including birth certificates, marriage licenses, and death certificates.
A history or background of an individual showing their heritage or class distinction.
- A person from whom one is descended.
- A parent or ancestor; the originator of a line; the earliest proven ancestor; the person from which all descendants originate.
- A biological father or male ancestor.
- A history or background of an individual showing their heritage or class distinction.