Analysis of information sources in references of the Wikipedia article "Louis Bertrand Castel" in English language version.
Louis-Bertrand Castel, second son of Guillaume Castel, physician, and of his wife, Louise, was born at Montpellier on the fifth of November, 1688. Footnote: And not on the eleventh as stated in the eulogy of Castel, Journal de Trevoux, April 1757, p. 1100. The fifth is the date given in the parish records of the church of Notre Dame in Montpellier. These records are now in the municipal archives.
He died on the eleventh of January, 1757. Footnote: This is the date given in his eulogy in the J. de T., April, 1757, pp. 1114–1115. Other dates given are the ninth and the twelfth. See J. de T., January, 1759, p. 357.
