Leviticus 21:2

but [they may mourn] for a relative who is very near to them, for a father and mother, and sons and daughters, for a brother,

But for his kin, that is near unto him, that is, for his mother, and for his father, and for his son, and for his daughter, and for his brother,

except for his relatives that are near to him: for his mother, for his father, for his son, for his daughter, for his brother,