espoused

Having been espoused or claimed; held (as a belief or position).

Contrary to most espoused wisdom, most distance hikers travel alone.

Yet, all these potential criticisms run counter to the very espoused (if albeit non-universal) types of claims that critical researchers tend to make.

Married, engaged, or in a committed monogamous relationship.

Eliezer immediately brought jewels of silver, jewels of gold, and raiment, and offered them to her as the espoused wife of Isaac.

You could daily see a purely white common goose having become a monogamist, being paired with a Canada male bird, taking her lofty aerial flights in company with her foreign mate, forgettering her former, and her naturally domestic habits, appearing now as an espoused partner, and assuming in all her nuptial felicity, the varied habits of her wild paramour.