Question: What patriarch of the Jackson family was a client of lawyer Debra Opri?

Context paragraphs:
Jackson family: The Jackson family is an American family of singers who originated in Gary, Indiana.  Performing as members of The Jackson 5 and as solo artists, the children of Joseph Walter and Katherine Esther Jackson were very successful in the field of popular music from the late 1960s onwards.  As a group, the eldest sons Jackie, Tito, Jermaine, Marlon, Randy and Michael, made the family's reputation, facilitating the subsequent success of siblings Rebbie, La Toya, and Janet.  The Jackson 5 became known as the "First Family of Soul" (a title first held by the Five Stairsteps).  The continued success of Michael and Janet's careers as solo artists led the Jacksons to become known as the "Royal Family of Pop".  All nine of the Jackson siblings have gold records to their credits with La Toya holding the distinction of being the first Jackson sister to attain one (awarded by France's SNEP for "Reggae Night", a song she co-wrote for Jimmy Cliff).

Jackson Memorial Fountain: Jackson Memorial Fountain is a historic fountain located at the entrance to City Park at Parkersburg, Wood County, West Virginia.  It was built in 1905, and is a cast iron structure that originally had three tiers.  The second tier is topped by Parkersburg's Lady of the Lake statue.  It features elaborately sculpted and decorated basins and pedestals.  The fountain is dedicated to the locally prominent Jackson family, that included General John Jay Jackson and his sons Federal Judge John Jay Jackson, Jr., Governor Jacob B. Jackson, and Circuit Judge and Congressman James M. Jackson.

Carol Jackson: Carol Ann Jackson is a fictional character from the BBC soap opera "EastEnders", played by Lindsey Coulson.  The character was introduced in 1993 as the mother of the Jackson family.  Coulson decided to quit the role in 1997, but she returned temporarily in 1999 within a storyline that marked Carol's daughter Bianca's (Patsy Palmer) exit.  On 25 October 2009 it was confirmed that she would return along with other members of the Jackson family, Sonia (Natalie Cassidy), Robbie (Dean Gaffney) and Billie (Devon Anderson), on 15 February 2010, although her first appearance in 2010 is in "EastEnders: Last Tango in Walford", an episode released exclusively to DVD on 8 February 2010.  Coulson chose to leave the show for a third time in June 2015, with her exit aired on 2 October 2015.

Marlon Jackson: Marlon David Jackson (born March 12, 1957) is an American entertainer, singer, dancer.  Jackson was a member of The Jackson 5.  Jackson is known as "the Dancingest Jackson" for his dancing performances on stage, as well as the "Jokester" for his sense of humor.  Jackson is the seventh child of the Jackson family.

Branning family: The Branning family are a fictional, extended family in the BBC soap opera "EastEnders".  Introduced in 1993 were the Jackson family, consisting of Carol Jackson (Lindsey Coulson), her partner (later husband) Alan Jackson (Howard Antony), and Carol's four children, Bianca Jackson (Patsy Palmer), Sonia Jackson (Natalie Cassidy), Robbie Jackson (Dean Gaffney), and Billie Jackson (Devon Anderson).  Billie is the only child fathered by Alan, while Bianca is the daughter of David Wicks (Michael French), Sonia's father is Terry Cant and Robbie's is Gary Bolton.  The family becomes a more dominating presence in the early 2000s, when Carol's father Jim Branning (John Bardon) moves to Walford following the death of his wife Reenie to cancer.  Since then, all six of Jim's children have appeared, many of them with family.

Jackie Jackson: Sigmund Esco "Jackie" Jackson (born May 4, 1951) is an American singer and musician.  Jackson is best known for being a member of The Jackson 5.  Jackson is the second child of the Jackson family and the oldest Jackson brother.

List of EastEnders characters (1993): The following is a list of characters that first appeared in the BBC soap opera "EastEnders" in 1993, by order of first appearance.  1994 was a historic year for "EastEnders", as in April, a third weekly episode was introduced.  Due to the programme's increased frequency, a number of new characters were introduced to the regular cast in the latter part of 1993 and early 1994.  Among them were the Jackson family: mother Carol (Lindsey Coulson), her four children, Bianca (Patsy Palmer), Robbie (Dean Gaffney), Sonia (Natalie Cassidy), and Billie (Devon Anderson), as well as Carol's partner Alan Jackson (Howard Antony).  Though Carol and Alan were not initially married in the serial, and though Alan was only the biological father of Billie, the whole family took on Alan's surname.  The family was created by writer Tony McHale.  None of the actors cast as the Jackson family were matched for appearance or screen compatibility.  Cassidy has commented, "it was all decided without doing that.  I don't think it particularly mattered that none of us Jackson kids looked like each other because all our characters had different dads!"  Carol was Coulson's first major television role.  Various members of the family began to appear sporadically from November 1993 onwards, but in episodes that aired early in 1994, the Jacksons moved from Walford Towers, a block of flats, to the soap's focal setting of Albert Square.  Their slow introduction was a deliberate attempt by the programme makers to introduce the whole family over a long period.  The Jacksons have been described by "EastEnders" scriptwriter Colin Brake as a "classic problem family".

Debra Opri: Debra Opri is a lawyer who gained a reputation as a celebrity attorney when she successfully represented James Brown against a sexual harassment lawsuit by a former employee.  Other high-profile clients have included Michael Jackson's parents, Joseph Jackson and Katherine Jackson, who hired Opri to protect their interests after their son was charged with child molestation; as well as Pamela Hasselhoff and Jermaine Jackson in their divorces.

John the Oxite: John VII the Oxite was the Eastern Orthodox Patriarch of Antioch at the time of the Siege of Antioch in 1097 in front of the besieging army of the First Crusade.  He was imprisoned by the Turkish governor, Yaghi-Siyan, who suspected his loyalty.  On occasion he was hung from the walls and his feet were hit by iron rods.  According to the "Historia belli sacri" (c. 1131), after the siege the Christian women of the city went to release the imprisoned patriarch, only to find that he could not stand, his legs having been weakened by so long a confinement .  He was released and re-established as Patriarch when the crusaders captured the city in 1098.  The crusaders soon established a Latin bishop in Albara (where there was no Greek bishop established) Peter of Narbonne.  Peter was consecrated by John.  The Patriarch John coexisted with Peter until John became politically inconvenient for the first Prince of Antioch, Bohemund I.  Bohemund accused him of conspiring with the Byzantine Empire, an old enemy of Bohemund and his Norman family, and John was exiled to Constantinople in 1100.  The Eastern Orthodox Church was repressed in favour of the Latin Church.  under Bernard of Valence, who succeeded Peter of Narbonne and took the position of Patriarch, establishing the line of Latin Patriarchs of Antioch.  In Constantinople, John resigned and entered a monastery in Oxia, where he wrote anti-Latin treatises.  A new Greek Patriarch was appointed in Constantinople until it was possible to restore them in Antioch later in the 12th century.

Joe Jackson (manager): Joseph Walter Jackson (born July 26, 1928) is an American talent manager, and is the patriarch of the Jackson family of entertainers which includes the artists Janet Jackson and Michael Jackson.

Supporting paragraphs: Debra Opri Joe Jackson (manager)
Answer: Joseph Walter Jackson