Sir George-Étienne Cartier was born on September 6, 1814.
There was probably no real person called "Sir Lanceolot" and, if there was, we do no know when his birthday was.
Sir Walter Raliegh's birthday is September 5, 1552 or 1554
Sir Christus was born on April 10, 1978.
*
May 26th
27 August
Sir Bertram Stevens was born on January 2, 1889.
Sir Lawrence Wackett was born on January 2, 1896.
Sir William Deane was born on January 4, 1931.
Sir Richard Arkwright was born on January 3, 1733.
Sir Matthew Nathan was born on January 3, 1862.
Sir Francis Galton was born on February 16, 1822.