The data in EuroMoMo is quite stable now: The heatwave in calendar week 26 resulted in more than 15,000 excess deaths across Europe. That was worse than the flu wave this January.
Also, interesting that it was primarily France and Belgium. Then Germany.
For Portugal it was a rather normal week, it seems.
That must be the deadliest natural disaster in recent history if you do not count covid as a natural disaster?
There is a Wikipedia list, which also contains the 2023 Turkey–Syria earthquakes with ~60,000 deaths. Heatwaves in Europe are a recurring item on that list though and this one is still ongoing.