There is no legal requirement to that effect. A testator/testatrix can have one will with one executor for all his/her assets locally and abroad.
Several considerations though make it more practical to have a will or wills, in which executors are appointed for each of the countries where assets are being held, which executors should preferably be residing in that country.
Should you therefore be fortunate enough to have assets abroad, we advise you to consider amending your current will or having an additional one drafted in which an executor from the country, where the assets are situated, is appointed.
You can complete the will instruction sheet here: Testament Instruksievel / Will Instruction Sheet
