Alba was born in Pomona, California, to Catherine Louisa (née Jensen) and Mark David Alba. Her mother has Danish, Welsh, German, English, and French ancestry, while her paternal grandparents, who were born in California, were both the children of Mexican immigrants. She has a younger brother, Joshua. Her third cousin, once removed, is writer Gustavo Arellano. Her father’s Air Force career took the family to Biloxi, Mississippi, and Del Rio, Texas, before settling back in Claremont, California, when she was nine years old. Alba has described her family as being a “very conservative family – a traditional, Catholic, Latin American family” and herself as very liberal; she says she had identified herself as a “feminist” as early as age five.
The double-ring ceremony describes the exchange of wedding rings by and for both spouses. In several European nations such as the Nordic countries, it is common to exchange plain engagement rings of the same form for both sexes, and typically, an additional, more precious, and bejeweled wedding ring is given to the bride. In the nuptials, the groom’s ring becomes a wedding ring also, and can be bestowed anew by the bride as a part of the wedding ceremony. The engagement is commonly a matter of agreement between the two, and the wedding rings are chosen together. Both engagement and wedding rings are worn on the left hand, the bride having both rings together. Occasionally, the groom receives a separate wedding ring. In Germany and Austria, both parties use engagement rings worn on the left hand. At the nuptials, a wedding ring is placed on the right hand, as in several east European nations, including Bulgaria, Poland, and Russia. This can be a new ring for the bride or both, or reusing the engagement rings. Any engagement rings can then remain on the left hand or be transferred to the right hand. In Germany, it has been customary for both the bride and the groom to wear a wedding ring since at least the 1870s and mentions of couples exchanging rings during the wedding ceremony in the Netherlands can be found at least as far back as 1815. In Brazil, Mexico and Spain both sexes also wear engagement rings, and the groom’s ring often becomes a wedding ring in the nuptial exchange ceremony. In The Netherlands plain bands can be worn on either hand, left for Catholics and right for Protestants. When engaged, both bride and groom wear what will be the wedding band on the opposite hand and switch hands after the wedding.