Some context: Carl Dean Wilson (December 21, 1946 - February 6, 1998) was an American musician, singer, and songwriter who co-founded the Beach Boys. He is best remembered as their lead guitarist, as the youngest brother of bandmates Brian and Dennis Wilson, and as the group's de facto leader in the early 1970s. He was also the band's musical director on stage from 1965 until his death. Influenced by the guitar playing of Chuck Berry and the Ventures, Carl's initial role in the group was that of lead guitarist and backing vocals, but he performed lead vocals on several of their later hits, including "God Only Knows" (1966), "Good Vibrations" (1966), and "Kokomo" (1988).
A cigarette smoker since the age of 13, Carl was diagnosed with lung cancer after becoming ill at his vacation home in Hawaii, in early 1997. Despite his illness, Carl continued to perform while undergoing chemotherapy. He played and sang throughout the Beach Boys' entire summer tour which ended in the fall of 1997. During the performances, he sat on a stool, but he stood while singing "God Only Knows".  Carl died of lung cancer in Los Angeles, surrounded by his family, on February 6, 1998, just two months after the death of his mother, Audree Wilson. He was interred at Westwood Village Memorial Park Cemetery in Los Angeles.  The Beckley-Lamm-Wilson album, Like a Brother, was finally released in 2000, and Carl's late recordings continue to appear. Brian's album Gettin' in Over My Head (2004) features Carl's vocal from the unreleased Beach Boys song "Soul Searchin'", with new backing vocals recorded by Brian. The original Beach Boys version, sourced from a cancelled attempt at a new Beach Boys album in late 1995, was eventually released in the Made in California (2013) box set, along with another 1995 track titled "You're Still a Mystery", which features Carl in the vocal blend. In 2010, bandmate Al Jardine released his first solo album, A Postcard From California, which includes a similarly reconstructed track, "Don't Fight The Sea", featuring one of the last vocals Carl recorded. Carl can also be heard on the continual stream of Beach Boys archival releases, most notably as a central voice in the November 2011 release of The Smile Sessions.  It was announced that Wilson's voice would be heard on a track from the reunited Beach Boys, on the album That's Why God Made the Radio (2012), but this never materialized. Instead, the scheduled song, "Waves of Love", featured on the 2012 re-release of Jardine's A Postcard From California. During The Beach Boys 50th Anniversary Reunion Tour, a segment of the show was dedicated to the memories of Dennis and Carl. The band harmonized with isolated vocal tracks of Carl performing "God Only Knows" and of Dennis singing "Forever", as the band's crew projected images of the individual Wilson brothers on a large screen behind the band onstage.
What did he achieve before death?
A: It was announced that Wilson's voice would be heard on a track from the reunited Beach Boys, on the album That's Why God Made the Radio (2012),

Some context: Mumtaz Mahal (Urdu: mumtz mHal ), ([mum'ta:z me'hel]; meaning "the Exalted One of the palace"; Arjumand Banu; 27 April 1593 - 17 June 1631) was Empress consort of the Mughal Empire from 19 January 1628 to 17 June 1631 as the chief consort of the Mughal emperor Shah Jahan. The UNESCO World Heritage Site Taj Mahal in Agra, often cited as one of the Wonders of the World, was commissioned to act as her final resting place. Mumtaz Mahal was born Arjumand Banu Begum in Agra to a family of Persian nobility.
Mumtaz Mahal was betrothed to Shah Jahan around 30 January 1607, when she was 14 years old at the time and he was 15. They were, however, married five years after the year of their betrothal on 30 April 1612 in Agra. The marriage was a love-match. After their wedding celebrations, Shah Jahan, "finding her in appearance and character elect among all the women of the time", gave her the title "Mumtaz Mahal" Begum ("the Exalted One of the Palace"). During the intervening years between their betrothal and marriage, Shah Jahan had gotten married to his first wife, Princess Kandahari Begum in 1609 and in 1617, after marrying Mumtaz, took a third wife, Izz-un-Nissa Begum (titled Akbarabadi Mahal), the daughter of a prominent Mughal courtier. According to the official court historians, both the marriages were political alliances.  By all accounts, Shah Jahan was so taken with Mumtaz that he showed little interest in exercising his polygamous rights with his two other wives, other than dutifully siring a child with each. According to the official court chronicler, Motamid Khan, as recorded in his Iqbal Namah-e-Jahangiri, the relationship with his other wives "had nothing more than the status of marriage. The intimacy, deep affection, attention and favour which Shah Jahan had for Mumtaz exceeded what he felt for his other wives." Likewise, Shah Jahan's historian Inayat Khan commented that 'his whole delight was centered on this illustrious lady [Mumtaz], to such an extent that he did not feel towards the others [i.e. his other wives] one-thousandth part of the affection that he did for her.'  Mumtaz had a loving marriage with Shah Jahan. Even during her lifetime, poets would extol her beauty, grace, and compassion. Despite her frequent pregnancies, Mumtaz travelled with Shah Jahan's entourage throughout his earlier military campaigns and the subsequent rebellion against his father. She was his constant companion and trusted confidant, leading court historians to go to unheard lengths to document the intimate and erotic relationship the couple enjoyed. In their nineteen years of marriage, they had fourteen children together (eight sons and six daughters), seven of whom died at birth or at a very young age.
What where these
A:
According to the official court historians, both the marriages were political alliances.