Charles Gray is an American musician, best known for his tenure as the guitarist for the Orange County rock band The Aquabats, of which he served as a member from 1994 to 2000 under the stage name of Ultra Kyu and later The Mysterious Kyu (pronounced as the letter Q).
 He also wrote all the songs for The Goodwin Club, a Ska band from Orange County, from 1993 to 1995.
The Kingpins featuring Lorraine Muller - The Queen of Ska was a ska band from Montréal, Canada that created Stomp Records label with fellow Montreal Ska band The Planet Smashers.
 The last Kingpins tour took place in 2004, after which the members of the band reformed under the name Lo and the Magnetics founded by Muller in order to reflect the drastic line-up changes (and musical changes) that had taken place since the band's inception in 1994.
 During their ten-year reign, the band toured extensively in Canada, the U.S., France, Germany, Switzerland, Belgium, Italy, and Japan.
 They are known for their danceable ska rhythms, and their catchy song-writing abilities in both English and French.
Sir George Grey, 1st Baronet, {'1': ", '2': ", '3': ", '4': "} (10 October 1767 – 3 October 1828) was a British Royal Navy officer.
 He was born at the family home of Fallodon, Northumberland on 10 October 1767, the third son of Charles Grey, 1st Earl Grey (1729–1807) and Elizabeth Grey (1744–1822), and younger brother of Charles Grey, 2nd Earl Grey and General Sir Henry George Grey.
 He served as a naval officer in the Royal Navy from the age of 14, and was on active service from 1781 to 1804, during the latter years of the American war of Independence, during the French Revolutionary War and the first year of the Napoleonic War.
 He served as Flag Captain for John Jervis, Earl of St Vincent and later as Master and Commander of the Mediterranean Fleet.
 He also served as Flag Captain for King George III on his royal yacht.
 From 1804 to 1806, he was Commissioner at Sheerness Dockyard, and from 1806 until his death on 3 October 1828 he was Commissioner at Portsmouth Dockyard
The Unlimiters are a German ska band from Berlin, formed in 2010 by members of the German ska band The Essentials.
 Their music is influenced both by the early years of ska and its later revival in the 2 Tone era.
 This is mixed with sounds from genres such as soul, surf and dub.
Put3ska was a Filipino ska band formed in 1993.
 The band's name is word play, combining the Filipino phrase, "putres ka" ("damn you") and "ska".
 The band referred to itself as a "60s-oriented, 90s ska band, influenced by Jamaican and British ska".
Fernando Pacheco (a.k.a. Fernando The Love Machine), current lead singer and trombonist for the ska/rock/reggae band No Villains Left, an actor/improv/sketch comic artist with Chocolate Squirrel, and radio personality based in Hawaii.
 Formerly with and a founding member of the band Pimpbot, he has toured the Western U.S. and Canada and appeared on each of their full-length albums, in addition to several singles, since their formation in 2001.
 An avid musician, he also plays drums with a jazz group known as "The Bender Trio", bass in a surf band "Dr. Zaius," and is the former trombonist of the world-renowned ska band Go Jimmy Go.
 He has played trombone as a guest artist with another Hawaiian ska band, Black Square.
 Additionally, he is known by his alter ego, Max Murdoch, from the band "Max Murdoch and The Northern Soul Project".
 In 2008 and 2009, Pacheco ventured into improvisational comedy and sketch comedy studying under Shannon Winpenny and Garrick Paikai in Honolulu.
The Revd.
 Sir Henry Thompson, 3rd Baronet Thompson of Virkees (5 November 1796 – 1 July 1868) was the third son of Sir Charles Thompson, 1st Baronet, and Jane Selby.
 He succeeded to the baronetcy after his eldest brother the 2nd Baronet died without issue in 1826.
 On 26 February 1826 he married Hannah Jean Grey, third daughter of Sir George Grey, 1st Baronet, of Falloden, KCB, Commissioner at Portsmouth Dockyard, and Mary Whitbread, daughter of Samuel Whitbread.
 Sir George Grey was the third son of Charles Grey, 1st Earl Grey, and younger brother of Charles Grey, 2nd Earl Grey.
Orange County is a county in the U.S. state of California.
 As of the 2010 census, the population was 3,010,232 making it the third-most populous county in California, the sixth-most populous in the United States, and more populous than twenty-one U.S. states.
 Its county seat is Santa Ana.
 It is the second most densely populated county in the state, second only to San Francisco County.
 The county's four largest cities, Anaheim, Santa Ana, Irvine, and Huntington Beach each have populations exceeding 200,000.
 Several of Orange County's cities are on the Pacific coast, including Huntington Beach, Newport Beach, Laguna Beach, Dana Point, and San Clemente.
Armageddon Massive is the debut full-length album from Californian ska band The Dingees.
 The album's sound moves between punk and ska, and its lyrics focus on the frustrations of life.
Earl Grey is a title in the Peerage of the United Kingdom.
 It was created in 1806 for General Charles Grey, 1st Baron Grey.
 In 1801, he was given the title Baron Grey of Howick in the County of Northumberland, and in 1806 he was created Viscount Howick in the County of Northumberland, at the same time as he was given the earldom.
 A member of the prominent Grey family of Northumberland, Earl Grey was the third son of Sir Henry Grey, 1st Baronet of Howick (see below).

Question: Which Californian county is the home of a Ska band that Charles Grey wrote songs for?
Answer: Orange County