William Arundell, married Mary Browne and had issue
Elizabeth Mary Arundell, married Sir John Philpot in 1606
Though a Roman Catholic, in 1588, he contributed £100 to fund the repulsion of the Spanish Armada. He greatly distinguished himself while serving with the imperial troops against the Turks in Hungary, and at the siege of Gran on 13 August 1595, he captured the enemy's banner with his own hand.
He was created a count of the Holy Roman Empire by Rudolph II in December 1595, and returned to England after suffering shipwreck and barely preserving his life in January 1596. His assumption of the foreign title created great jealousy among the English peers, who were wont to give little courtesy to foreign nobles, and he thereby incurred the resentment of his father, who objected to his superior rank and promptly disinherited him.
The queen, moreover, was seriously displeased, declared that "as chaste wives should have no glances but for their own spouses, so should faithful subjects keep their eyes at home and not gaze upon foreign crowns", and committed him to the Fleet immediately on his arrival, while she addressed a long letter of remonstrance on the subject to the emperor.
Thomas Arundell remained under arrest till April, when he was liberated after an examination. That very month, April 1597, however, he was again confined, but declared innocent of any charge save that of practicing to contrive the justification of his vain title with ministers beyond the seas.