When Peregrine Bertie, 13th Baron Willoughby de Eresby, KB was born on 12 October 1555, in Wesel, North Rhine-Westphalia, Germany, his father, Richard Bertie, was 38 and his mother, Catherine Willoughby, was 36. He married Lady Mary de Vere on 25 December 1577, in England, United Kingdom. They were the parents of at least 4 sons and 1 daughter. He died on 25 June 1601, in Berwickshire, Scotland, United Kingdom, at the age of 45, and was buried in Spilsby, Lincolnshire, England, United Kingdom.
Scottish (Angus): from a pet form of a personal name such as Albert or Bertram.
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