not sure. Durham, warwick, york and bristol are quite competetive.
And you will need AAB for Durham, York
And probably AAA for bristol
I would go for 2 of those unis, but choose another uni to fall back on in case you dont get the grades you want. i got ABBB in my AS levels and i applied for durham, but i needed AAB. Well they gave me a conditional offer. So if you get the UCAS adminstrator at your school to perhaps inform UCAS that you had family problems, the universities may be able to overlook the fact that your grades are'nt up to scratch. the problem is if they see those grades, they may not be bothered to read your application. i would recommend apply for 2 out of the 4 as well as royal holloway and keele.
Retake your exams and hope the best. good luck!