Prince Moritz of Hesse is 4 years old (birthdate: March 26, 2007).
This answer is closed to changes. This is done in rare cases when questions are being vandalized or answers have become debates. E-mail reopen @ answers.com (no spaces) if you would like it to be reopened.
Prince Friedrich of Hesse and by Rhine was born on October 7, 1870 and died on May 29, 1873. Prince Friedrich of Hesse and by Rhine would have been 2 years old at the time of death or 141 years old...