seisin in deed. Instead of a physical entry on to the land, sometimes a token of the land (e.g., a turf, or similar) would be handed over ceremoniously, (see "turf and twig"; cf. the handover of "earth and water" by political entities subjecting themselves to the Persian Empire, which thereafter considered their rulers its vassals). A tenant seised in deed as well as in law thus had obtained the best legal title to his tenure available. Primer seisin Primer seisin is defined as "the right which the king had, when any of his tenants died seised of a knight's fee, to receive of the heir, provided he were of full age, one whole year's profits of the lands, if they were in immediate possession; and half a year's profits, if the lands were in reversion, expectant on an estate for life" On the death of a tenant-in-chief, for example a feudal baron, his holding was heritable by his son or other right heir. The conveyancing procedure, or procedure of "re-enfeoffment", i.e., re-establishment of tenure in a fief, was as follows. The heir would pay homage to the king, which once received established him irreversibly as the true heir, for the ceremony of homage was in the form of a sacred vow. Only then could the heir pay his feudal relief to the treasury, which final step would enable him to obtain seisin, i.e., actual possession. Between the death of the previous tenant and the new seisin, there was an empty tenure of the fief, which was legally inconvenient, but tolerated as generally of short duration. It is important to understand that such a tenure did not escheat, even temporarily, to the crown pending the re-enfeoffment of the heir. Yet in the case of a barony, which was an extensive tenure of frequently several dozen manors, the king needed to make certain that the heir who presented himself to pay homage was the true heir, for should his homage be accepted, his status was irreversibly confirmed, and the new baron would be entitled to attend parliament. Time was needed for the sheriff of the shire concerned to make enquiries, sometimes by use of local juries. In order to provide the king with time to make such investigations, the king took temporary seisin of the barony and all its lands, which needed management during the interval, which was termed "primer seisin". It