The wording of the request line is also important. For example " the honor ( or honour if you are British) of your presence" should ONLY be used for wedding ceremonies taking place in a house of worship. If you are getting married outside of a house of worship you have many other options. A popular option is "request the pleasure of your company". I frequently use " invite you to celebrate with them at the marriage of their daughter".
Have any questions? Let me know!