matter that entitles the king to the possession of lands or tenements, goods or chattels; as to inquire whether the king’s tenant for life died seised, whereby the reversion accrues to the king; whether A., who held immediately of the crown, died without heir, in which case the lands belong to the king by escheat; whether B. be attainted of treason, whereby his estate is forfeited to the crown; ‘whether C:, who has purchased land, be an alien, which is another cause of forfeiture, ete. 3 Bl. Comm.