Jaber was a younger brother of Jassim bin Mohammed Al Thani, the founding father of modern Qatar.

[4] Hamad bin Khalifa al-Thani, ruling Emir of Qatar from 1995 to 2013, was the first Arab politician received by Nicolas Sarkozy after the latter's election to the French presidency in May 2007.

[9] The French government made of Qatar under Hamad's guidance a strategic partner, and the list of partnerships between the two states includes Total, EADS, Technip, Air Liquide, Vinci SA, GDF Suez, and Areva.

[10] The US embassy to Doha claimed, in a cable leaked in December 2010, that "Sheikh Hamad (HBJ) told then US senator John Kerry that he had proposed a bargain with the Egyptian president, Hosni Mubarak, which involved stopping broadcasts in Egypt in exchange for a change in Cairo's position on Israel-Palestinian negotiations, and that 'we would stop al-Jazeera for a year' if Mubarak agreed in that span of time to deliver a lasting settlement for the Palestinians.

[6] In June 2021, High Court of Justice in London issued a claim, according to which Hamad bin Jassim's private office was at the heart of clandestine routes by which money was transferred to an Al-Qaeda affiliate in Syria, the Al-Nusra Front.

[16] In March 2022 Hamad bin Jassim said to a Qatari television that the Military Operations Command in Jordan and Turkey have spent $2 trillion to remove Syria's President Bashar al-Assad.

As part of the agreement to cease hostilities the two nations agreed, through the negotiating effort of Hamad, to refer the issue to the Permanent Court of Arbitration at The Hague in 1998.

In an attempt to resolve a broader political showdown that had paralyzed the country for 18 months, Hamad summoned the Lebanese government and Hezbollah-led opposition to Qatar for talks.

The Lebanese government furthermore committed itself to introduce a new electoral law designed to provide better representation in the country's sectarian system of power sharing.

In 2009, Hamad participated in brokering a peace agreement to end the conflict in Darfur ("The Goodwill and Confidence Building Pact”) between the government of Sudan and Justice and Equality Movement.

Hamad also has been involved in ongoing efforts between Fatah and Hamas to achieve Palestinian reconciliation to activate the peace process with Israel.

He supported the effort to release Mr. Nawaz Sharif, the former Prime Minister of Pakistan from jail, and was instrumental in freeing the Bulgarian nurses in Libya from prison.

The initiative was set to help improve the living conditions for millions of people affected by humanitarian crises around the world.

In an attempt to prevent money laundering, the funds were frozen from 16 July 2000 by the Jersey Financial Services Commission, who then began a court case and investigation.

[9] Hamad paid the Jersey authorities £6 million as a "voluntary reparation" as "the structures put in place by his advisers may have contributed to the cost and complexity of the inquiry."

Solve (the Palestinian question) and terrorism is defused.”[6] In 2010 HBJ acquired 10% of El Corte Inglés in Spain, the country's largest department store chain.

For this transaction he used a local "figurehead", David Barreiro Nogaledo, who was investigated by the Regional Court in Madrid for a potential case of Money Laundering and misappropiation.

[25] The same "figurehead" tried to make HBJ invest, in 2019, in another Spanish Company, Laboratorios Larrasa, accused afterwards of Fraud in Spain and Brazil.

[29] In May 2015, Hamad purchased Picasso's Les Femmes d'Alger (Version O) for $179.4 million including fees, a record price for a painting at auction.

[34] The funds were said to be in the form of €500 notes, handed over in person in three tranches, in a suitcase, holdall and Fortnum & Mason carrier bags.

[3] He subsequently married Sheikha Noor bint Abdulaziz Al Subaie, the daughter of the former minister of education, in 1996 as his second wife.