William de Chesney
... that the medieval Anglo-Norman nobleman William de Chesney took the surname of his mother's family, as did his paternal half-brother Simon, even though Simon wasn't related to that family?
... that the medieval Anglo-Norman nobleman <b id="mwAog"><a href="./William_de_Chesney_(sheriff)" id="mwAok" rel="mw:WikiLink" title="William de Chesney (sheriff)">William de Chesney</a></b> took the surname of his mother's family, as did his paternal half-brother Simon, even though Simon wasn't related to that family?