Respected Sir/ Madam,
This email is to inform you that my name is _________ (name) and I am working as a _________ (designation) in your reputed organization. My employee ID is ______ (ID).
I would like to bring to your notice that due to sudden demise of _____________ (mention relation) I will not be able to come to the office from __/__/____ (date)/ tomorrow till __/__/____ (date) as I have to travel to ______ (location). The reason being ___________ (sudden demise of a family member/ brief reason).
I hope that you will understand my situation and sanction me the leave for the next ____ (days). I am waiting for your quick confirmation in this regard.
_________ (Employee ID Number),
_________ (Contact Details)