My beloved mother-in-law, how happy I am to be able to congratulate you on yet another birthday! I hope it is full of light, triumphs and love! It is a privilege to be called son-in-law for you and to be part of this beautiful family that welcomed me from the beginning.
You are a woman like few in the world and know that I am very grateful for all the affection I received and still receive from you constantly.
Make the most of your day and make beautiful memories of this celebration. Congratulations and best wishes at all times of your life. Love you!