Sir Gerard, you and Lady Joanna have the benefit of having already had years in which to know and love one another, this is just a logical (and emotional) advancing step toward maintaining your shared future. Marriage is a wondrous thing, when two people who are meant to be together do in fact find one another. As we all know, this is not always the case.
By the grace of God I pray you two have the best of the best- many more years of happiness and contentment, to watch your children and grandchildren and raise them up to the fine standards that you and your Lady have set. God bless you and yours, Brother.