On 28 Sep 1667 Ferdinand Wenzel Habsburg Spain was born to Leopold Habsburg Spain I Holy Roman Emperor (age 27) and Margaret Theresa Habsburg Holy Roman Empress (age 16). On 13 Jan 1668 Ferdinand Wenzel Habsburg Spain died. Coefficient of inbreeding 30.98%.

On 20 Feb 1670 Johann Leopold Habsburg Spain was born to Leopold Habsburg Spain I Holy Roman Emperor (age 29) and Margaret Theresa Habsburg Holy Roman Empress (age 18). He died the same day. Coefficient of inbreeding 30.98%.

On 09 Feb 1672 Maria Anna Antonia Habsburg Spain was born to Leopold Habsburg Spain I Holy Roman Emperor (age 31) and Margaret Theresa Habsburg Holy Roman Empress (age 20). She died on 23 Feb 1672 aged two weeks. Coefficient of inbreeding 30.98%.

On 18 Jan 1669 Maria Antonia of Austria was born to Leopold Habsburg Spain I Holy Roman Emperor (age 28) and Margaret Theresa Habsburg Holy Roman Empress (age 17). Coefficient of inbreeding 30.98%.

In 142BC Ptolemy IX Soter 142BC 81BC was born to Ptolemy VIII Physcon 184BC 116BC (age 42) and Cleopatra III 160BC 101BC (age 18). Coefficient of inbreeding 28.54%.

Around 138BC to 135BC Cleopatra IV 138BC 112BC (age 3) was born to Ptolemy VIII Physcon 184BC 116BC (age 46) and Cleopatra III 160BC 101BC (age 22). Coefficient of inbreeding 28.54%.

Around 135BC to 130BC Cleopatra Selene of Syria 135BC 130BC (age 5) was born to Ptolemy VIII Physcon 184BC 116BC (age 49) and Cleopatra III 160BC 101BC (age 25). Coefficient of inbreeding 28.54%.

Ptolemy VII Neos Philopator was born to Ptolemy VIII Physcon 184BC 116BC and Cleopatra II 186BC 115BC. Coefficient of inbreeding 28.54%.

Around 160BC to 155BC Cleopatra III 160BC 101BC (age 5) was born to Ptolemy VI 186BC 145BC (age 25) and Cleopatra II 186BC 115BC (age 26). Coefficient of inbreeding 28.54%.

Tryphaena- was born to Ptolemy VIII Physcon 184BC 116BC and Cleopatra III 160BC 101BC. Coefficient of inbreeding 28.54%.

In 140BC or 139BC Ptolemy X Alexander I 140BC 88BC (age 1) was born to Ptolemy VIII Physcon 184BC 116BC (age 44) and Cleopatra III 160BC 101BC (age 20). Coefficient of inbreeding 28.54%.

Rose Armagnac was born illegitimately to Jean V Count Armagnac and Isabelle Armagnac. Coefficient of inbreeding 27.06%.

John Armagnac was born illegitimately to Jean V Count Armagnac and Isabelle Armagnac. Coefficient of inbreeding 27.06%.

Anthony "Bastard" Armagnac was born illegitimately to Jean V Count Armagnac and Isabelle Armagnac. Coefficient of inbreeding 27.06%.

On 09 Oct 210BC Ptolemy V Epiphanes 210BC 180BC was born to Ptolemy IV Philopator 244BC 204BC (age 34) and Arsinoe III 246BC 204BC (age 36). Coefficient of inbreeding 26.66%.

On 23 Dec 1658 Ferdinand Thomas Charles Habsburg Spain was born to Philip IV King Spain (age 53) and Mariana of Austria Queen Consort Spain (age 24). He died ten months later. Coefficient of inbreeding 25.39%.

On 06 Nov 1661 Charles "Bewitched" II King Spain was born to Philip IV King Spain (age 56) and Mariana of Austria Queen Consort Spain (age 26). Coefficient of inbreeding 25.39%.

On 07 Dec 1655 Maria Ambrosia Habsburg Spain was born to Philip IV King Spain (age 50) and Mariana of Austria Queen Consort Spain (age 20). She died 14 days later. Coefficient of inbreeding 25.39%.

On 12 Jul 1651 Margaret Theresa Habsburg Holy Roman Empress was born to Philip IV King Spain (age 46) and Mariana of Austria Queen Consort Spain (age 16). Coefficient of inbreeding 25.39%.

On 28 Nov 1657 Philip Prospero Habsburg Spain Prince Asturias was born to Philip IV King Spain (age 52) and Mariana of Austria Queen Consort Spain (age 22). He died four years later. Coefficient of inbreeding 25.39%.

Around 1341BC Tutankhamun 1341BC 1323BC was born to Akhenaten KV55 1336BC and The Younger Lady. Coefficient of inbreeding 25.00%.

Henrietta Molesworth was born to Richard Molesworth 3rd Viscount Molesworth and Letitia Coote. Coefficient of inbreeding 25.00%.

On 28 Jan 1618 James Ley 3rd Earl Marlborough was born to Henry Ley 2nd Earl of Marlborough (age 22) and Mary Pettie. Coefficient of inbreeding 25.00%.