A man whose wife is dead is called a widower.
He's a widower with three small children to take care of.
The young widower mourn his wife.
Six years later, Louise met Tom a middle-aged widower whose wife had died in a car accident a few years earlier.
caleb was married once, but now he is a widower
English word "鳏夫"(widower) occurs in sets:家庭及亲戚关系 - Family and relations