siblings of Sostenuto xx

half siblings maternal

stallion Romulus xx (Thoroughbred, 1959, from Ribot xx)

Romulus xx

horse Riboremus xx (Thoroughbred, 1967, from Ribot xx)

Riboremus xx

stallion Idomeneo xx (Thoroughbred, 1960, from Alycidon xx)

Idomeneo xx