Frederico X and Mary of Denmark complete 20 years of marriage The date will be spent in Oslo, Norway, where the monarchs are making a state visit.

© Getty Images

Frederico X and Mary of Denmark complete 20 years of marriage The date will be spent in Oslo, Norway, where the monarchs are making a state visit.

© Getty Images

Frederico X and Mary of Denmark complete 20 years of marriage The date will be spent in Oslo, Norway, where the monarchs are making a state visit.

© Getty Images

Frederico X and Mary of Denmark complete 20 years of marriage The date will be spent in Oslo, Norway, where the monarchs are making a state visit.

© Getty Images

Frederico X and Mary of Denmark complete 20 years of marriage The date will be spent in Oslo, Norway, where the monarchs are making a state visit.

© Getty Images

Frederico X and Mary of Denmark complete 20 years of marriage The date will be spent in Oslo, Norway, where the monarchs are making a state visit.

© Getty Images

Frederico X and Mary of Denmark complete 20 years of marriage The date will be spent in Oslo, Norway, where the monarchs are making a state visit.

© Getty Images

Frederico X and Mary of Denmark complete 20 years of marriage The date will be spent in Oslo, Norway, where the monarchs are making a state visit.

© Getty Images

Frederico X and Mary of Denmark complete 20 years of marriage The date will be spent in Oslo, Norway, where the monarchs are making a state visit.

© Getty Images

Frederico X and Mary of Denmark complete 20 years of marriage The date will be spent in Oslo, Norway, where the monarchs are making a state visit.

© Getty Images

Frederico X and Mary of Denmark complete 20 years of marriage The date will be spent in Oslo, Norway, where the monarchs are making a state visit.

© Getty Images

Frederico X and Mary of Denmark complete 20 years of marriage The date will be spent in Oslo, Norway, where the monarchs are making a state visit.

© Getty Images

Frederico X and Mary of Denmark complete 20 years of marriage The date will be spent in Oslo, Norway, where the monarchs are making a state visit.

© Getty Images

Frederico X and Mary of Denmark complete 20 years of marriage The date will be spent in Oslo, Norway, where the monarchs are making a state visit.

© Getty Images

Frederico X and Mary of Denmark complete 20 years of marriage The date will be spent in Oslo, Norway, where the monarchs are making a state visit.

© Getty Images

Frederico X and Mary of Denmark complete 20 years of marriage The date will be spent in Oslo, Norway, where the monarchs are making a state visit.

© Getty Images

Frederico X and Mary of Denmark complete 20 years of marriage The date will be spent in Oslo, Norway, where the monarchs are making a state visit.

© Getty Images