Question: Who is younger, Isaac P. Walker or Nakkhatra Mangala?

Knowledge 1: Isaac P. Walker
Isaac Pigeon Walker( November 2, 1815 March 29, 1872) was an American politician who served as a U.S. Senator from Wisconsin.Walker was born in Virginia and moved with his family to Illinois in 1825.He practiced law in Springfield, Illinois, and served one term in the Illinois House of Representatives.He moved to Wisconsin in 1841 and practiced law in the Milwaukee area.He served in Wisconsin's territorial legislature from 1847 to 1848.When Wisconsin was admitted as a state in 1848, Walker was elected as a Democrat to represent Wisconsin in the United States Senate, where he served until 1855.He is buried at Forest Home Cemetery in Milwaukee.Isaac Walker's older brother, George H. Walker, was a founder and mayor of Milwaukee, Wisconsin. [SEP] Knowledge 2: Nakkhatra Mangala
Nakkhatra Mangala, Prince of Chanthaburi II( 4 January 1897 – 11 February 1953), was the eldest son of Kitiyakara Voralaksana, Prince of Chanthaburi I and Princess Apsarasaman Kitiyakara.After his daughter Mom Rajawongse Sirikit Kitiyakara entered a royal marriage with King Bhumibol Adulyadej, he was promoted to General Prince of Chanthaburi Suranath, HH Prince Nakkhatra Mangala Kitiyakara in the past) by royal command in 1952.He represented the Ministry of Foreign Affairs as the ambassador of the kingdom of Thailand to the Court of St James's in the United Kingdom, and to the government of France Prince Nakkhatra married Mom Luang Bua Kitiyakara( Sanidvongs) and they had four children:
Knowledge 1: Nakkhatra Mangala
Nakkhatra Mangala, Prince of Chanthaburi II( 4 January 1897 – 11 February 1953), was the eldest son of Kitiyakara Voralaksana, Prince of Chanthaburi I and Princess Apsarasaman Kitiyakara.After his daughter Mom Rajawongse Sirikit Kitiyakara entered a royal marriage with King Bhumibol Adulyadej, he was promoted to General Prince of Chanthaburi Suranath, HH Prince Nakkhatra Mangala Kitiyakara in the past) by royal command in 1952.He represented the Ministry of Foreign Affairs as the ambassador of the kingdom of Thailand to the Court of St James's in the United Kingdom, and to the government of France Prince Nakkhatra married Mom Luang Bua Kitiyakara( Sanidvongs) and they had four children: [SEP] Knowledge 2: Busba Kitiyakara
" Than Phu Ying" Busba Kitiyakara Sathanapong( born 1934) was the daughter of Mom Chao Nakkhatra Mangala Kitiyakara and younger sister of Sirikit Kitiyakara, who became Queen of Thailand.
Knowledge 1: Nakkhatra Mangala
Nakkhatra Mangala, Prince of Chanthaburi II( 4 January 1897 – 11 February 1953), was the eldest son of Kitiyakara Voralaksana, Prince of Chanthaburi I and Princess Apsarasaman Kitiyakara.After his daughter Mom Rajawongse Sirikit Kitiyakara entered a royal marriage with King Bhumibol Adulyadej, he was promoted to General Prince of Chanthaburi Suranath, HH Prince Nakkhatra Mangala Kitiyakara in the past) by royal command in 1952.He represented the Ministry of Foreign Affairs as the ambassador of the kingdom of Thailand to the Court of St James's in the United Kingdom, and to the government of France Prince Nakkhatra married Mom Luang Bua Kitiyakara( Sanidvongs) and they had four children: [SEP] Knowledge 2: Dmitri Varfolomeyev (footballer, born 1978)
Dmitri Nikolayevich Varfolomeyev( born 15 March 1978 in Leningrad) is a former Russian football player.He is a younger brother of Sergei Varfolomeyev.

Answer: Nakkhatra Mangala