and those that are incomplete, no matter at what time begun, before the felony or  after it, can never be carried into effect after condemnation. 1Suppose that when the  felon has been convicted by some [proper] form of conviction, the justices de  facto though not de jure take into the king's hand land given in fee or demised for a  term before the felony committed, so that the king has his year and day.2 Cannot the  chief lord then recover such seisin as the king had? Not de jure, because the felon  cannot forfeit to another to hold in demesne land [so] given in fee, nor even that given  for a term before the term has ended, because of the servitude of having the usufruct  for a term of life or years acquired by the termor before the felony perpetrated. [But  in truth, because at the conclusion of the term it is to revert to the chief lord as his  escheat,3 the king will have his term, provided that at the end of it he recompenses  the termor to the value, so that he suffers no loss.] And if the chief lord on his own  authority puts himself in seisin after the year and day the termor will have his  re-entry by the ordinary writ, namely, Why he intruded himself in that land during  his term. But if the felon demised the land at will and from year to year, before or  after the felony committed, it will be the escheat of the chief lord immediately  after condemnation, provided the lord king [first] has his term. And [in holding  that] before condemnation, [that is] until the felony is proved, the land of a felon  can never be the escheat of the chief lord, the law4 agrees with English custom:  D. 39.5.15, where it is said that gifts made after the commission of a capital crime  are valid unless condemnation follows.
If a gift is made of another's property.
 We have seen above the gifts5 which are valid and effective and cannot be revoked  when the donor makes [the thing] the property of the taker, [as where he makes a  gift] of his own property.6 Now we must see [the gifts] which are not valid and  effective [and may be revoked] though [the thing] is at once made the property of  the taker, [as] where a gift is made of another's property, [for] though it is valid as  between7 donor and donee, and as against those who have no right, it is not valid  as against him who has right, [at once, only after a time,8 for if he immediately  ejects the feoffee the latter will not recover by the assise, but if through negligence  or acquiescence he has time [in possession] he cannot be disseised without writ and  judgment.] A thing may be entirely and in every way another's, with respect to  the right and the property, the fee and the free tenement, the usufruct and the bare  use, as where one has put himself in seisin