siblings of Boxberger Boy xx

half siblings maternal 2 half siblings paternal 5
  half siblings maternal (2)
  half siblings maternal (2)
  half siblings paternal (5)

half siblings maternal

horse Boxberger Dream xx (Thoroughbred, 1979, from My Swanee xx)

Boxberger Dream xx
gender-female
1979

My Swanee xx / Gulf Pearl xx

broodmare Boxberger Ster xx (Thoroughbred, 1981, from Tumble Wind xx)

Boxberger Ster xx
gender-female
1981

Tumble Wind xx / Gulf Pearl xx