Modeled after an older icon of the Maternal Lineage of Christ treasured at the Monastery of Our Lady 'Saidraya' in Jerusalem, this icon shows 4 generations: Christ as a child, the Most Holy Theotokos, St. Anna (the mother of the Theotokos), as well as St. Mariam (the mother of Anna and Great-grandmother of Christ).
The first listing under July 25th in the 'Great Synaxaristis' by Venerable Nikodemos the Hagiorite states that holy and righteous Anna (the mother of the Theotokos) is the daughter of Matthan the priest and his wife Mariam (page 102 of the -1982 edition).