Ludmilla Droushnakovi Koudelka, better known as Drou, was the wife of Clement Koudelka; together, they were known as "Kou and Drou". They had four daughters, Delia, Martya, Olivia and Kareen; the elder two daughters were body births, and the younger two were among the first, if not the first, voluntary uterine replicator births on Barrayar.