By Emma Berry and Brian Sheerin DEAUVILLE, France--As the co-breeder of the outstanding matriarch Urban Sea, Maurice Lagasse will forever be famed in the racing world but it is another family that has put his Gestut Zur Kuste in the spotlight of late, and on Saturday night his Dubawi (Ire) half-sister to two Group 1 winners topped the August Sale at €2.4 million. Oliver St Lawrence is no stranger to plucking expensive yearlings from Arqana's flagship sale and it was his name on the docket for lot 214 after he...