Shakespeare's only son was born at the end of January, 1585 and christened along with his twin sister Judith on 2 February, 1585. The birth of his twins is the last recorded fact about Shakespeare's life until 1592 when his name appears in London cast lists as an actor and a playwright. We know that Hamnet died suddenly at the age of eleven and that Shakespeare returned to Stratford from London to attend the funeral. There is no direct reference to him in any of Shakespeare's written works. Hamnet was probably named after his godfather, the baker Hamnet Sadler who was William Shakespeare's lifelong friend. What is certain is that Shakespeare did not name his Danish prince Hamlet after his son; instead, he took the name for the title character of Hamlet from his literary sources for the play.