Property derived from First Marriage

This query is over a debate between me and my brother. I am asking this query for my aunt (My father's first cousin). My aunt in her early 40s lost her husband in 2012 and most recently she got remarried. There are no kids from first marriage which lasted for about 14 years. Her first husband inherited some family property and they also built a new home with their savings and earning. Now, as uncle is no more and aunt is remarried, will she get access to the property she got from first marriage, or should she give it back to husband's siblings including the home (as no kids from first marriage). Her first husband had two siblings - a twin brother and an elder sister.