This paper was written in Spanish for a lecture in Málaga. From the Consolatio uxoris we learn that Plutarch and Timoxena had one single daughter, who was born after four sons and only lived to be two years old. Since in the Quaestiones Convivales we encounter three different characters (Craton, Firmus, and Patrocleas) indicated as Plutarch’s gambroi, some critics state them to be his sons-in-law, thus supposing the existence of three married daughters; others prefer to consider them as the husbands of Plutarch’s nieces; still others reject both conclusions and think the term gambroi merely refers to “relatives” in general. A careful analysis of all the passages involved clearly shows, in the first place, that gambrós can only refer to sons-in-law and brothers-in-law; therefore, in the case in hand, the three men were Plutarch’s brothers-in-law: very probably three brothers of his wife Timoxena.