In 1571 Philip Howard 20th Earl Arundel (age 13) and Anne Dacre Countess Arundel (age 13) were married. She being his step-sister. An unusual example of a Marriage of Three Sets of Siblings where, in this case, three brothers, married three sisters, who were also step-siblings, as a means of keeping the sisters inheritance. She the daughter of Thomas Dacre 4th Baron Dacre Gilsland 8th Baron Greystoke and Elizabeth Leybourne Duchess Norfolk. He the son of Thomas Howard 4th Duke of Norfolk (age 34) and Mary Fitzalan Duchess Norfolk. They were half third cousin once removed.

Before 1572 Thomas Howard 1st Earl Suffolk (age 10) and Mary Dacre (age 8) were married. She by marriage Baroness Audley Walden in Essex. She died six years later three months short of her fifteenth birthday. She being his step-sister. An unusual example of a Marriage of Three Sets of Siblings where, in this case, three brothers, married three sisters, who were also step-siblings, as a means of keeping the sisters inheritance. She the daughter of Thomas Dacre 4th Baron Dacre Gilsland 8th Baron Greystoke and Elizabeth Leybourne Duchess Norfolk. He the son of Thomas Howard 4th Duke of Norfolk (age 35) and Margaret Audley Duchess Norfolk. They were half third cousin once removed.

On 28 Oct 1577 William Howard (age 13) and Elizabeth Dacre (age 12) were married. She being his step-sister. An unusual example of a Marriage of Three Sets of Siblings where, in this case, three brothers, married three sisters, who were also step-siblings, as a means of keeping the sisters inheritance. She the daughter of Thomas Dacre 4th Baron Dacre Gilsland 8th Baron Greystoke and Elizabeth Leybourne Duchess Norfolk. He the son of Thomas Howard 4th Duke of Norfolk and Margaret Audley Duchess Norfolk. They were half third cousin once removed.