I have no reason to doubt the date of birth in your query, but I trust you would welcome news of another date :
TITE, sir William, architect; b. 7 Feb. 1801 . . . d. 28 April 1873. No information on family members. Maybe the Times published his obituary.
My source is page 583 of "A Dictionary of Biography, Past and Present, Containing the Chief Events in the Lives . . ." edited by Benjamin Vincent. ISBN (of reprint) = 0810339838.
I am not an expert on any country?s genealogy, but I can give you a citation of a book that might be useful :
"Burke's Family Index." London: Burke's Peerage, 1976. 200 p. Blurb: ?An [alphabetical] index to 20,000 different family histories appearing in various Burke publications since 1826.? ?T. Beard.