As of 18 August 2010, you must register to edit pages on Rodovid (except Rodovid Engine).

From Rodovid EN

Lineage	Арсеньевы
Sex	Male
Full name (at birth)	Григорий Фёдорович Арсеньев
Parents ♂ Фёдор Степанович Арсеньев [Арсеньевы]

Sources

1. ↑ - Template:Российская родословная книга

From grandparents to grandchildren