It was relatively common for parents to lose children (every second child was expected to die before 5y) but even then, with all that death around them, the tragedy remained as great as today. Back then, most did look to their God for solace, though: https://www.reddit.com/r/AskHistorians/comments/1goyaco/when...

In the present, orthodox practitioners of Abrahamic religions, in particular, may stoically overcome such profound grief by attributing it to divine will.