siblings of Sonja van Valkenhorst

half siblings paternal

broodmare Gina (unknown,  , from Baron van Axel)

Gina

broodmare Anita van Hooidonk (Dutch Heavy Draft,  , from Baron van Axel)

Anita van Hooidonk

broodmare Annelies van Vressel (Dutch Heavy Draft,  , from Baron van Axel)

Annelies van Vressel

broodmare Elsje van Hersa (Dutch Heavy Draft,  , from Baron van Axel)

Elsje van Hersa