Pakistan Peoples Party (PPP) senior leader and barrister Aitzaz Ahsan said on Tuesday that he apologised for his earlier remarks pertaining to Begum Kulsoom Nawaz's illness, hours after the former first lady breathed her last at a London hospital.
After the Supreme Court disqualified Nawaz Sharif from his seat a year ago, Kulsoom was elected to Lahore's NA-120 constituency in a bye-poll.
Born into a Kashmiri family in Lahore in 1950, Kulsoom Nawaz attended Islamia College and Forman Christian College University for her graduation.
When Nawaz and Maryam Sharif left London for Pakistan in July, they knew they faced lengthy jail terms and would likely not see Ms Nawaz again.
Her husband and daughter, Maryam, are both in jail in Pakistan.
The Musharraf regime eventually allowed Nawaz and Kulsoom Sharif to leave the country, and they spent years in exile until returning in 2007 to contest new elections after Musharraf stepped down in the face of mass protests. She contested from the NA-120 seat despite her failing health and secured 59,413 votes to defeat Yasmin Rashid of the Pakistan Tehreek-e-Insaf (PTI).
Begum Kulsoom served as first lady of Pakistan for three non-consecutive terms from 1990-1993, 1997-1999 and 2013-2017. According to sources, Kulsoom Nawaz will be buried in Pakistan as authoritie to bring her body back from London.
Begum Kulsoom was elected to Lahore's NA-120 constituency in a by-poll after her husband was disqualified from the seat by the Supreme Court past year, but left for the United Kingdom before she could begin campaigning for the by-poll.
President Dr Arif Alvi has expressed grief over the passing away of Begum Kulsoom Nawaz.
"Sad to learn of Begum Kulsoom Nawaz's death".
New Prime Minister Imran Khan issued a statement offering condolences, and said the government "as per law" would provide assistance to the family. "May Allah bless the departed soul eternal peace at Heaven-Amen", the director general of Inter-Services Public Relations said in a message.