• 1 · Religion and Magic
• 2 · Nature
• 3 · Human Being, Man in General
• 4 · Society, Civilization, Culture
• 5 · Abstract Ideas and Concepts
• 6 · History
• 7 · Bible
• 8 · Literature
• 9 · Classical Mythology and Ancient History

• Top
• 4 · Society, Civilization, Culture
• 42 · family, descendance
• 42G · family, relationship, descent
• 42G2 · family relationships (first, second, third and fourth degree), generations
• 42G23 · third degree family relationships

42G231 · great-grandparents (third degree family relationships)