
Welsh Harp was bred by Kate Nivison's Etak Thoroughbreds and sold first as a weanling by Shadwell Farm as agent for $60,000 at the Inglis Great Southern Weanling Sale Platinum Session and then made $100,000 at the Inglis Premier Yearling Sale when offered by Blue Gum Farm and bought by Heritage Bloodstock.
Welsh Harp is the fourth winner from Molly Rocks, a half-sister by rock of Gibraltar (IRE) to Group II winner Silverstream, Group III winner Sweet Natalie and stakes-winner Calanda.