descending ad infinitum, and then, those in the right line failing, through the  transverse line descending ad infinitum, and finally, when those in the transverse  line descending fail, they are called who are in a transverse line ascending, [only  in that line, because through the right line ascending, through which the right  descends because of the death of ancestors, the right never re-ascends,]1 [for] though  all ad infinitum, descending or ascending, are right and lawful heirs,2 not all are called  to the succession at the same time, because the nearer excludes the near, the near the  remote and the remote the more remote, [and] all of them failing, whether because of  the failure of heirs or felony, the right reverts of necessity to the feoffor, that is, to the  chief lord, since it may find no other way,3 and homage disappears, as will be explained  more fully below [in the portion on] escheats.4 Some heirs are under the  potestas of parents and within age, some are sui juris and of full age, as those who  are emancipated or forisfamiliated during the lives of their parents.5 After their  parents' death some are of full age and sui juris, some are within age and under the  tutelage or wardship of the chief lords, some in the care of their nearer relations,6  as will be explained below.7
The nature of heirs, who are near and who nearer, and their seisin.
 Some heirs are near and nearer, some remote and more remote8. If one has two sons  both are near heirs, the younger as well as the older. [With respect to the seisin of  their parents they are equals in possessory right, provided the younger son, through  the negligence or acquiescence of the older, has been in seisin for so long a time that he  cannot be ejected without judgment and without writ, for after that they are equal in  right and an equal cannot eject an equal in possessory right. Recourse must henceforth  be had to proprietary right, as explained below [in the portion on] the assise of  mortdancestor.9 If after his ancestor's death the younger son puts himself in seisin  before his older brother and is at once ejected, he will not recover by the assise of  novel disseisin, because he cannot have a free tenement, except through the lapse of  time and peaceful possession or seisin, because of the proprietary right which lies  with the older.10 If he cannot be ejected at once, if the older, so as to interrupt his  possession, immediately impetrates by assise of mortdancestor and diligently  prosecutes, though the assise does not proceed between them as between others  because