DEPENDENT VISA
Your husband, wife or civil partner and any of your children under 18 can come to the UK with you during your studies, as long as you can adequately accommodate and support them without needing any help from public funds.

If you are over 18 and have a parent settled in the UK, or if you are a sister, brother, aunt, uncle or any other relative of a person settled in the UK, you may qualify if you meet the conditions in the most exceptional compassionate circumstances.

If you are a widowed parent or grandparent aged 65 or over, or parents or grandparents traveling together and one of you is 65 or over, you may qualify subject to conditions:

More Information at http://www.ukvisas.gov.uk/en/howtoapply/infs/inf5students