The Lvellie Family was one of the families responsible for helping found the Black Order over a hundred years ago. Since the Black Order's founding, members of the Lvellie Family have held positions of power, both within the Order and within Central, offices based in the Vatican that oversee the liaison between the Pope and the Chief Officer of the Order.
So devoted was the Lvellie Family to their duty to the Order that, back when potential Accommodators were forcibly bonded with Innocence, they offered up one of their own daughters to the service of the Order, making her a "saint." It has been strongly implied that this girl was Hevlaska. It is because of their relation to this saint that the members of the Lvellie Family have been able to secure the positions they have.
It was the Lvellie Family who was largely responsible for the Black Order's policy of forcibly bonding people who were believed to be potential Accommodator's to Innocence, which resulted in over sixty children, including members of the Lvellie Family, turning into Fallen Ones. This policy would stand firm and was common practice for almost a hundred years, until Komui Lee became the Chief Officer of the Black Order and had it revoked.
Position and Duties
As they are descendants of a saint, all family members have to get marry when they are in age for fathering. 
|Malcolm C. Lvellie||Chief Inspector of Central to the Black Order||Alive|
|Hevlaska||Holder of The Cube; Family Saint||Alive|
|Lvellie'sfather||Officer of Central||Unkown|