Cases of the valid grandmother inheritance 372. A valid grandmother inherits: (a) one-sixth of the estate, by ordainment whether she is one or more or whether she is maternal or paternal or both maternal and paternal or both maternal and paternal together and she is not disinherited; (b) where the grandmothers are several the one-six shall equally be divided between them. Disinheritance of the valid grandmother 373. A valid grandmother is disinherited by the: (a) mother at all; (b) father where she is a paternal grandmother; (c) grandfather where she is his ascendant; (d) relationship of them from any side whether she is an heiress or disinherited. The valid grandfather 374. A valid grandfather is the one in the affinity of whom to the deceased no female enters. Cases of the valid grandfather inheritance 375. A valid grandfather inherits: (a) one-sixth of the estates by ordainment, where with the heirs there is an inheriting male descendant, and he is not disinherited; (b) one-sixth of the estate, by ordainment, and what is left of the shares of ordained shares by consanguinity, upon presence of the female inheriting descendant and she is not disinherited; (c) all the estate by consanguinity, where he is alone, or the rest, after the shares of those of ordained shares, by consanguinity, upon absence of the inheriting descendant at all. Inheritance of the grandfather with the brothers 376. (1) Where a valid grandfather joins with the full-blood brothers or paternal half-blood brothers, he shall share therewith the estate, as a brother, where they are only males, or males and females, or females consanguined with the female inheriting descendant. (2) A valid grandfather shall take the rest, by consanguinity, after the shares of those of ordained shares, where he is with non-consanguined sisters by males or he is not consanguined by, or with others. (3) Where the division or inheritance is by consanguinity, in accordance with provisions of subsections (1) and (2), the valid grandfather shall be disinherited or decreases him from one-sixth, then he shall be deemed one of those of ordained shares and take one-sixth. Disinheritance of the valid grandfather 377. A valid grandfather shall be interdicted by the father and by every valid grandfather, who is nearer than he. Chapter III Consanguinity Inheritance by Consanguinity 378. {1) Inheritance by consanguinity is not an assessed inheritance of the deceased's male relatives and those having their status, or who participate with them of females, who are not restricted in their affinity to the deceased to a female. {2) Consanguinity is of three types: (a) consanguinity by self; (b) consanguinity by others. (c) consanguinity with others. Consanguinity by self 379. Consanguinity by self are parties; some of them are precedent to others according to the following arrangement: (a) filiation and includes the sons, the son's grandsons, even though they are lower; (b) parenthood, which includes the father alone; (c) grandfathers and the brothers, and include the paternal grandfather even though he is higher and the fullblood brother and paternal half-blood brother; (d) paternal cousins, and include full-blood brother cousins or of paternal half-blood brother even though they are lower; 36