Ua hoʻomaka ka laina o ka ʻīlio pahu pahu mai ka manawa i hele wāwae ai ka ʻīlio Munich Bullenbeiser me kahi ʻīlio o ka waihoʻoluʻu ʻike ʻole ʻia, ʻoi loa - me ka ʻīlio pā hale mongrel. Ua manaʻo ʻia ʻo ka ʻōpala i loaʻa iā lākou ʻo ia nā pahu pahu mua. ʻOi aku ka pololei, ua manaʻo ʻia kahi kāne mai kēia litter i kapa ʻia ʻo Lechner ka progenitor o ka pua. A i ka hopena o ke kenekulia 19.
ʻO nā mea pahu mua, nā keiki a Lechner, ua hoʻopaʻa inoa ʻia ma ke ʻano he Bierboxer a i ʻole Modern Bullenbeiser, akā ua hoʻopaʻa ʻia kāna "kaikamahine" me kahi bulldog kāne, ʻo ia ka hopena o nā ʻīlio i hōʻike mua ʻia ma ka hōʻike ʻīlio ma Munich (a ma hope i hoʻopaʻa inoa ʻia) ma ke ʻano he pahu pahu.