Martlet in the context of "Swift (bird)"

Jasper Tudor, Duke of Bedford (c. November 1431 – 21 December 1495) was the uncle of King Henry VII of England and a leading architect of his nephew's successful accession to the throne in 1485. He was a member of the Tudor family of Penmynydd.

Jasper Tudor's coat of arms, granted to him by his maternal half-brother, King Henry VI, quarters the three lilies of France with the three lions of England, with the addition of a bordure azure with martlets or (that is, a blue border featuring golden martlets).

In heraldry, cadency is any systematic way to distinguish arms displayed by descendants of the holder of a coat of arms when those family members have not been granted arms in their own right. Cadency is necessary in heraldic systems in which a given design may be owned by only one person at any time, generally the head of the senior line of a particular family.

As an armiger's arms may be used 'by courtesy', either by children or spouses, while they are still living, some form of differencing may be required so as not to confuse them with the original undifferenced or "plain coat" arms. Historically, arms were only heritable by males, and therefore cadency marks had no relevance to daughters; in the modern era, Canadian and Irish heraldry include daughters in cadency.

The House of Ursel is an old Belgian noble family of German origin. The Head of the House is styled as Duke of Ursel, while other members are styled as Count/Countess of Ursel.