Is there a single word to describe the new wife/husband of a widower/widow?

(By single word I mean a description in exactly one word, not more.)

Is there a single word to describe the new wife/husband of a widower/widow?

More Info:

In countries like Albania they have an official document called "Family Certificate", which is essentially a list of members of the immediate family, and their relationship to the head of household.

Something like:

1. Person 1 - Head of Household
2. Person 2 - Wife (deceased)
3. Person 3 - Daughter
4. Person 4 - (Word for new wife, which roughly translates to 'new one')

(If it cannot be one word, what is something that fits this meaning?)