With PPP's Asif Ali Zardari as Pakistan's 14th President, Aseefa Bhutto-Zardari was appointed as First Lady. Generally, it is the wife who is assumes the position so to see the late Benazir Bhutto's daughter as First Lady had some questioning the appointment. However it emerged that the role was not limited to wives.
"In Pakistan, President Ayub Khan’s First Lady (1962-1969) was his daughter, Nasim Aurangzeb. Governor General Muhammad Ali Jinnah’s First Lady (1947-1948)was his sister, Mohtarma Fatima Jinnah. 9 U.S. First Ladies were not wives of the President" tweeted, former Pakistani Ambassador to the US, Husain Haqqani.
Ex-Federal Caretaker Minister for Information, Broadcasting and Parliamentary Affairs, Murtaza Solangi also shed light on the matter stating in a tweet:
"Consider: The First Lady isn't always the wife of the president. Historically presidents of the USA in the past have had •Sisters (Chester A Arthur, Grover Cleveland)
•Daughters (Thomas Jefferson, Benjamin Harrison, Woodrow Wilson)
•Nieces (Andrew Jackson, James Buchanan)
•Daughter-in-laws (Andrew Jackson, Martin Van Buren, John Tyler) as their First Lady. It's not by virtue of being married, but a matter of being host(ess) of the White House.
In fact, the first person to be called "First Lady" while serving in that capacity was Harriet Lane, the niece of the President James Buchanan."