| 1. | His older half-brother, Frederick Casimir, only son of Wenceslaus III Adam's first marriage, died a few years before he was born, in 1571. Son demi frère ainé, Frédéric Casimir de Cieszyn, seul fils de Venceslas III Adam par son premier mariage, meurt en 1571 quelques années avant sa naissance. |