Thomas had inherited the barony of de Ros when he was barely four years old.

After the death of the second baron, his heiress Margaret inherited the barony.

The attainder of those two prevented John inheriting the barony.

His elder brother Philip inherited the barony from their grandfather.

The following year he also inherited the barony of Campbell on the death of his father.

As his only surviving child, Catherine inherited the barony.

This was his official style and name until he inherited the barony in 1996.

Warenne inherited the barony when his father died in 1179.

On his death two years later, she inherited the barony of Wentworth from her grandfather.

In 1679 he inherited the barony on the death of his father.