How Does English Law Give Effect to the Right to Marry and Found a Family as Guaranteed by Article 12 of the European Convention on Human Rights?

How Does English Law Give Effect to the Right to Marry and Found a Family as Guaranteed by Article 12 of the European Convention on Human Rights?
Article 12 states 'Men and women of marriageable age have the right to marry and found a family, according to the national laws governing the existence of this right'. The European Court held that there is no one European-wide view of what marriage is and so each country is given a margin of 'appreciation' to decide how it understands marriage. Therefore, if taken literally, this article seems to give English law the power to determine and limi…