Family Relationship Chart
  GGGG
grandfather
GGGG        
granduncle    
GGG
grandfather
GGG          
granduncle    
first cousin
five removed
GG
grandfather
GG          
granduncle    
first cousin
four removed
second cousin
four removed
great
grandfather
great          
granduncle    
first cousin
three removed
second cousin
three removed
third cousin
three removed
grandfather granduncle     first cousin
twice removed
second cousin
twice removed
third cousin
twice removed
fourth cousin
twice removed
father uncle         first cousin
once removed
second cousin
once removed
third cousin
once removed
fourth cousin
once removed
fifth cousin
once removed
self brother first cousin second cousin third cousin fourth cousin fifth cousin sixth cousin
son nephew first cousin
once removed
second cousin
once removed
third cousin
once removed
fourth cousin
once removed
fifth cousin
once removed
sixth cousin
once removed
grandson grandnephew first cousin
twice removed
second cousin
twice removed
third cousin
twice removed
fourth cousin
twice removed
fifth cousin
twice removed
sixth cousin
twice removed
great
grandson
great
grandnephew
first cousin
three removed
second cousin
three removed
third cousin
three removed
fourth cousin
three removed
fifth cousin
three removed
sixth cousin
three removed
From http://community.netidea.com/tspencer/RelationChart.html