Apr 3 John Abernethy, English surgeon, born in London, England (d. 1831) Apr 12 Dirk van den Boetzelaer, Regent of Holland, born in Leiden, Netherlands (d. 1819) Apr 13 Laurent, 1st Marquis of Gouvion Saint-Cyr, French marshal, born in Toul, Three Bishoprics, France (d. 1830) 1763 Birthdays in History 1765