Garry Marshall
On the morning of July 19, 2016, Marshall died at a hospital in Burbank, California at the age of 81 due to complications of pneumonia after suffering a stroke.
Marshall Eriksen
Very few references have been made to identify Marshall's birthday. We can assume he was in the same school year as best friend and roommate Ted Mosby and then-girlfriend Lily Aldrin and In "The Yips" Marshall says he is 29. This episode aired in November 2007. This confirms Marshall's birth year to be either 1977 or 1978. Ted is turning 30 on April 25, 2008 in "The Goat". The dialogue in this episode implies that Lily, Marshall and Robin have not yet reached this milestone. In "Glitter" Lily says Marshall is 384 months old, thus 32 years, 1 week, 1 day and 21 hours old. Since the episode plays somewhere between November 9 (the date the previous episode played in) and November 24, 2010 (the date the next episode plays in) we can only conclude he was born between November 2 and November 14, 1978