In as far as you can recommend a Travelodge, we recommend the Peartree Travelodge! It is a good low budget accommodation option, within striking distance of the wedding venues. We have stayed there with groups of Chinese school kids and can vouch that it is a reasonable option! Unlike much of Oxford, it has good parking available and allegedly (googlemap says) is only 9 or so minutes drive from the venues. There are many nicer, more glamorous alternatives all over Oxford, please check on Airbnb.com/Booking.com, but this is a sensible budget option.
