See also

Lord William 3rd Earl Orkney, 1st Earl Caithness (bef1420-bef1482)

1. Lord William Sinclair, 3rd Earl of Orkney 3rd Earl Orkney, 1st Earl Caithness, son of Henry Sinclair, 2nd Earl of ORKNEY (c. 1375-1422) and Egidia DOUGLAS ( - ), was born before [Julian] February 1420. He had the title '3rd Earl Orkney, 1st Earl Caithness'. He had the title '3rd Earl Orkney, 1st Earl Caithness, 1st Lord Sinclair, Chancellor'. He died between 1476 and 1482. He died in 1480. He married Elizabeth DOUGLAS. He married Marjory SUTHERLAND.

 

Elizabeth DOUGLAS and William Sinclair, 3rd Earl of Orkney had the following children:

 

William Sinclair, 2nd Lord Sinclair (bef1403-1487). William was born before 1403. He had the title '2nd Lord Sinclair'. He died on [Julian] 14 July 1487.

Catherine SINCLAIR ( - )

 

Marjory SUTHERLAND and William Sinclair, 3rd Earl of Orkney had the following children:

 

Sir Oliver Sinclair of Roslin ( - )

William Sinclair, 2nd Earl of CAITHNESS ( - )

Second Generation

2. Henry Sinclair, 2nd Earl of ORKNEY, son of Henry Sinclair. 1st Earl of Orkney and Jean Halyburton, was born circa 1375. He died in 1422. He married Egidia DOUGLAS.

 

3. Egidia DOUGLAS was the daughter of William Douglas, Lord of Nithsdale. She and Henry Sinclair, 2nd Earl of ORKNEY had the following children:

 

1

William Sinclair, 3rd Earl of Orkney (bef1420-bef1482)

Third Generation

4. Henry Sinclair. 1st Earl of Orkney, son of William Sinclair of Roslin and Isabella of Strathearn, died in 1404. He married Florentia of Denmark?. He married Jean Halyburton.

 

5. Jean Halyburton was the daughter of John Halyburton of Dirleton. She and Henry Sinclair. 1st Earl of Orkney had the following children:

 

2

Henry Sinclair, 2nd Earl of ORKNEY (c. 1375-1422)

 

6. William Douglas, Lord of Nithsdale has few details recorded about him.

 

William Douglas, Lord of Nithsdale had the following children:

 

3

Egidia DOUGLAS ( - )