Meanings of recognised by law in English

The register is the only title to land recognised by law.

Should that determination not be recognised by law-abiding citizens?

Some are even calling for it to be recognised by law following the legalisation of gay marriage in the UK and the US.

The three children were born to the mother and the father who were in a relationship not recognised by law as a civil marriage.

Meanwhile, LGBT families continued to face daily discrimination and children were living in families which weren't recognised by law as equal to "regular" families.

(1) Marriage, a union recognised by law or custom, which imposes duties and confers rights on one, both, or all the parties to it.