房玄齢
Fang Xuanling was born in 579, shortly before the founding of the Sui dynasty in 581, during Sui's predecessor state, Northern Zhou. His great-grandfather Fang Yi (房翼) was a general, official, and hereditary count under the Northern Wei dynasty, and his grandfather Fang Xiong (房熊) was also an official. His father Fang Yanqian (房彥謙) was a county magistrate during the Sui dynasty.