William Borthwick, 3rd of Borthwick 1st Lord Borthwick

Aft 1411 - Abt 1458  (< 45 years)

• Name	William Borthwick
  Suffix	3rd of Borthwick 1st Lord Borthwick
  Birth	Aft 1411
  Gender	Male
  Reference Number	15663
  Death	Abt 1458
  Person ID	I15663	KLD Genealogy
  Last Modified	26 Nov 2025

  
  

  Father	William Borthwick, Sir 2nd of Borthwick Castellan of Edinburgh
  Relationship	biological
  Mother	Beatrice Sinclair of Orkney, Countess of Avondale Countess of Douglas,   b. Scotland d. Bef 8 Feb 1463, Lanarkshire, Scotland
  Relationship	biological
  Family ID	F5704	Group Sheet  |  Family Chart

  
  

  Family 1	Spouse #3
  Children	1. William Borthwick, 2nd Lord Borthwick   d. Abt Oct 1483  [Father: biological]  [Mother: biological]   2. John Borthwick, 1st of Crookston   d. Abt 1483  [Father: biological]  [Mother: biological]   3. Margaret Borthwick, Lady  [Father: biological]  [Mother: biological]
  Family ID	F5701	Group Sheet  |  Family Chart
  Last Modified	26 Nov 2025

  
  

  Family 2	Spouse #1
  Children	1. Agnes Borthwick  [Father: biological]  [Mother: biological]
  Family ID	F5702	Group Sheet  |  Family Chart
  Last Modified	26 Nov 2025

  
  

  Family 3	Mariotta Hoppringle
  Children	1. James Borthwick   d. Bef 1494  [Father: biological]  [Mother: biological]   2. Thomas Borthwick, Sir   d. Aft 1503  [Father: biological]  [Mother: biological]   3. Alexander Borthwick   d. Aft 1513  [Father: biological]  [Mother: biological]
  Family ID	F5703	Group Sheet  |  Family Chart
  Last Modified	26 Nov 2025