Thanks, Frenchie and Idun. I may take up Frenchie's very kind offer of further advice later. For what it's worth we're in the Auvergne, and what little we've seen of the local primary schools suggests that they are a little less formal than the norm. But it is only a little that we've seen. The five-year-old was born in 2006, and the 3-year old in 2008, so as I understand it now the two boys would both be at the maternelle together for a bit. As for the kidnapping issue (!), the separated husband suggested this arrangement and so has no objections. Of course he could change his mind. I now wonder - from having explored some of the healthcare threads - whether I should suggest that our daughter defers getting divorced. This is unlikely to be a popular suggestion, for reasons I will leave to your imagination, but right now the son-in-law is working and paying tax/NI in the UK. I think I picked up a suggestion that if a husband works in the UK and the dependent wife/children live in France, they can get French medical cover with an S1/E106. But maybe being separated stops that from happening. Would it be sensible to start a separate thread in the Healthcare section?