en.wikipedia.org/wiki/Princess_Michael_of_Kent

This sentence conflates passage of the Act with its later commencement.

The official text of the Succession to the Crown Act 2013 shows that the Act was enacted on 25 April 2013. Its own commencement section then says that only section 5 came into force on the day the Act was passed, while the other substantive provisions would come into force later by order.

Those substantive provisions — including section 2, which removed the disqualification for marrying a Roman Catholic — are marked on legislation.gov.uk as coming into force on 26 March 2015. A UK Parliament written statement issued that day likewise says: “Today the provisions of the Succession to the Crown Act 2013 come into force.”

So Prince Michael’s restoration to the line of succession is tied to the Act coming into force on 26 March 2015, not to the Act passing on that date. The Act had already passed nearly two years earlier, on 25 April 2013.

This honorific is misstated in gendered form.

Princess Michael of Kent’s own official website lists her under the Sovereign Military Order of Malta as “Dame Grand Cross of Honour and Devotion.” A separate biography page on the same official site also says she is “a Grand Dame of the Order of Malta.”

That directly contradicts the article’s wording, which calls her “Knight Grand Cross of Honour and Devotion.” Whatever the surrounding formatting, the specific rank shown here is wrong: her official title is the female form, Dame Grand Cross, not Knight Grand Cross.