" No you cannot say , 'le jour suivant le mariage' you could say, ' le jour après le mariage' but ' le lendemain du mariage' is even better... "
I have 2 questions about this answer:
Q1) Compare the example "Il a été relâché le jour suivant son arrestation." with "Il s'est réveillé le jour suivant le mariage". Do these both not follow the same pattern of the day following+[something]. What is it about the latter that is wrong?
Q2) Cécile has indicated we could say le jour après le mariage but in the lesson we can read "You cannot say le jour après in French." So which is it?