Through her 3rd great-grandmother, Lady Jang was a 7th great-granddaughter of King Sejo and Royal Noble Consort Geun through their eldest son, Prince Deokwon.
After entering the palace, Pungan was careful with her conduct every time of the day, and as she served and respected elders in a consistent manner, she received special love from her mother-in-law, Queen Inryeol.
At this point, she displayed her prudence through wisely taking care of house chores and handling all sorts of matters at home.
When the Qing invasion of Joseon had occurred in 1636, Pungan fled to Gwangha Island along with Bongrim, her husband's sister-in-law, the Crown Princess Consort Kang, and her maternal grandfather, Kim Sang-yong, the Third State Councillor.
Afterward, when the Qing dynasty's troops hand landed directly on Gwanghado Island, endangering the lives of many people, while everyone cried out with confusion, Pungan showed calmness and handled the crisis composedly as usual.
As the head of royal consorts, she wisely led court ladies and treated her subordinates with kindness while being stern yet merciful.
For example, one of the King's concubine, Royal Noble Consort An of the Gyeongju Yi clan, caused a great stir after calling her daughter, Princess Suknyeong, "you".
But as a witness to Crown Princess Kang's tragic death, such a way of thinking may have been the best strategy for her to rely on during the complicated political situation of the time.
In 1659, as the King was receiving acupuncture to treat a boil on his head, he ended up losing too much blood during the process, making his condition critical, and eventually died in vain due to medical accident.
On this, even though the Queen expressed her sorrow through severe wailing, she gave her best to make the funeral process meaningful, and it's told that she personally trimmed his fingernails as well as toenails and washed his body.
Yi Yeon succeeded his father as 18th Joseon monarch (temple name: Hyeonjong) and she was honoured as Queen Dowager Hyosuk (효숙왕대비).
For her posthumous title, “In” (인; 仁) was for showing love and loyalty, and “Seon” (선; 宣) was for spreading goodness around and to others.