par＝to bear,to give birth to（生）
n [U] descent from parents; origin; ancestry 父母的身分; 家世; 世系; 出身
*a person of unknown parentage, ie having parents whose identity is not known 家世不明的人
* of humble parentage 出身卑贱.
someone's parents and the country and social class they are from
an English-born man with Irish parentage
He was born in France in 1670 of unknown parentage (=nobody knows who his parents were) .