on her 20th birthday Theodore N0tt, asked Sirius Bl@ck for his daughters hand in marriage, when her father said no Y/n bl@ck took matters into her own hands and ran away with Theodore, they got married in a small circle of their closest friends and by the time Sirius found out about his daughters marriage to Nott, it was already too late, Y/n is pregnant, he had no other choice than to accept his daughters choices in order not to lose her