issue; offspring; paternal blood
nobleman's illegitimate child
illegitimate child (usu. of a nobleman)
child; offspring; issue; sperm; (one's) seed
illegitimate child (usu. of a nobleman)
lineage; stock; descent; strain; blood relationship
Imperial descendant (posterity)
half-sibling (by a different father); uterine sibling; maternal half-sibling; half-brother; half-sister
to become pregnant with an illegitimate child