Sir Edward was a lawyer who had been knighted by King James I of England in 1614; appointed a justice of the peace and Attorney-General for the Duchy of Lancaster; and elected as a Member of Parliament for Preston in 1614, 1620–1622, and 1624–1625.
The 1st Baronet's father was Rowland Mosley (1558–1616), another son of the aforesaid Sir Nicholas and his wife Marjorie.
Lady Cynthia and her two sisters were in special remainder to the barony of Ravensdale created for their father in 1911.
On his death in 2017, he was succeeded in both titles by his grandson, Daniel Mosley, who became the 4th Baron Ravensdale and the 8th Baronet.
Max Mosley, second son in the second marriage of the sixth Baronet, was the long-serving President of the Fédération Internationale de l'Automobile.
The heir apparent to both the barony and the baronetcy is the present holder's eldest son, the Hon.