Disneyland spending money??

So I'm going to Disneyland Paris next month for 4 days and 3 nights, all inclusive (excluding drinks) and we fly home about 6pm on the 4th day. My partner is taking care of his money so it's just me and my 3 year old. This is my first family holiday and I have no idea how much spending money to take. I was thinking about £430 which would transfer to €503. What do you guys think, how much would you take?