Congratulation On Marriage How Do You Say "Congratulations On Your 50 Years Of Marriage" In Spanish?

How do you say "Congratulations on your 50 years of marriage" in Spanish? - congratulation on marriage

"Congratulations on 50 years of marriage" would be a correct translation
But 50 years of marriage is generally as "Bodas de Oro" or golden wedding anniversary or 50th Birthday known. You can "Congratulations on your Golden Wedding"

Edit:
Thank you, "Congratulations on your Golden Anniversary"