Ammianus Marcellinus Res Gestae 29.3.9

[9] My mind shrinks from enumerating all the cases, and at the same time I dread seeming to give the impression of purposely having sought out merely the defects of a prince who was a very proper man in other ways. Yet one thing it is just neither to pass over nor to leave unmentioned, namely this, that having two savage, man-eating she-bears, one called Goldflake and the other Innocence, he looked after them with such extreme care that he placed their cages near his own bedroom, and appointed trustworthy keepers, who were to take particular care that the beasts’ lamentable savageness should not by any chance be destroyed. Finally, after he had seen the burial of many corpses of those whom Innocence had torn to pieces, he allowed her to return to the forest unhurt, as a good and faithful servant, in the hope that she would have cubs like herself . . .