Nicholas Conyngham Tindal

The Right Honourable Sir Nicolas Conyngham Tindal PC
Portrait of Sir Nicolas Conyngham Tindal by Sir Thomas Phillips RA, now in the Great Hall of Lincoln's Inn.
Born	(1776-12-12)12 December 1776 Moulsham, Chelmsford, England
Died	6 July 1846(1846-07-06) (aged 69)
Monuments	Commemorative plaque at birthplace Statue at Chelmsford Portrait at Lincoln's Inn Portrait at Royal Courts of Justice Memorial at Chelmsford Cathedral
Nationality	English
Education	King Edward VI Grammar School (Chelmsford)
Alma mater	Trinity College, Cambridge
Occupations	Lawyer Chief Justice of the Court of Common Pleas Solicitor General
Known for	Defended Caroline of Brunswick Introduction of the insanity defence
Relatives	Nicolas Tindal (great-grandfather), Matthew Tindal (great great grand-uncle), Adela Maddison, grand-daughter, Reginald Bosanquet (great great grandson)

Sir Nicolas Conyngham Tindal, PC (12 December 1776 – 6 July 1846) was a celebrated English lawyer who successfully defended the then Queen of the United Kingdom, Caroline of Brunswick, at her trial for adultery in 1820. As Chief Justice of Common Pleas, an office he held with distinction from 1829 to 1846, he was responsible for the inception of the special verdict "Not Guilty by reason of insanity" at the trial of Daniel M'Naghten.

Judge Tindal was born in the Moulsham area of Chelmsford, where 199 Moulsham Street is today, and the site is marked with a commemorative plaque.