siblings of Alter Rail xx

half siblings maternal 4 half siblings paternal 5

half siblings maternal

horse Agathon xx (Thoroughbred, 2017, from Sidestep xx)

Agathon xx
gender-male
2017

Sidestep xx / Goofalik xx

horse Active Adventure xx (Thoroughbred, 2016, from Poseidon Adventure xx)

Active Adventure xx
gender-female
2016

Poseidon Adventure xx / Goofalik xx

horse Alter Toylsome xx (Thoroughbred, 2014, from Toylsome xx)

Alter Toylsome xx
gender-male
2014

Toylsome xx / Goofalik xx

horse Alte Adventure xx (Thoroughbred, 2015, from Poseidon Adventure xx)

Alte Adventure xx
gender-female
2015

Poseidon Adventure xx / Goofalik xx