He was sired by Galileo, who won the Derby, Irish Derby and King George VI and Queen Elizabeth Stakes in 2001. Galileo became one of the world's leading stallions, earning his tenth champion sire of Great Britain and Ireland title in 2018. His other progeny include Cape Blanco, Frankel, Golden Lilac, Nathaniel, New Approach, Rip Van Winkle, Found Minding and Ruler of the World. Waldgeist's dam Waldlerche showed high class form in France, winning the Prix Penelope in 2012. before becoming a successful broodmare whose other foals have included the Prix de Malleret winner Waldlied. Waldlerche was a half-sister to the St Leger winner Masked Marvel and closely related to the Deutsches Derby winner Waldpark.