Peter Robert Livingston (1766-1847) was a lawyer and politician who represented Rhinebeck in the New York State Senate from 1815 to 1822 and from 1826 to 1829 as a member of the Bucktails. He also served a single term in the New York State Assembly in 1823 during which he was Speaker, and was also the Lieutentant Governor of New York in 1828. While he sided with MVB in many political questions early in their careers, he later became a member of the Whig Party, serving as a delegate to the Whig National Convention of 1839.
"Peter Robert Livingston" The Political Graveyard, accessed February 15, 2021.
http://politicalgraveyard.com/bio/livingston.html#753.05.32, Chenango Telegraph (Norwich, NY), January 27, 1847. accessed February 15, 2021.
https://nyshistoricnewspapers.org/lccn/sn83031359/1847-01-27/ed-1/seq-2…, Franklin Benjamin Hough, The New-York Civil List, containing the names and origin of the Civil Divisions, and the Names and Dates of Election or Appointment of the Principal State and County Officers, from the Revolution to the Present Time (Albany: Weed, Parsons, and Co., 1858), 47, 49, 52, 57, 101, 122-27, 199.