Hmm, his inscription does indicate that he belongs to this family..
Inscription at St. Finn Barre's Cathedral, Cork.
"To the glory of God and in honoured memory of Thomas Roberts DD sometime Scholar of Trinity College Dublin second son of Sir Thomas Roberts first Baronet of Glassenbury Kent born 11th October 1590 died June 1664In 1631 he was presented to the Rectory of St. John's of Jerusalem by King Charles I was rector of St. Nicholas from 1639 and Chacellor of this diocese 1660 to 1664"
He married 1st Elizabeth daughter of Sir Thomas Neville of Cork and 2ndly to Dorothy daughter of Richard Boyle DD Archbishop of Tuam, by both of whom he left issue.This memorial was placed here by Sir Howland Roberts, 12th and 5th Baronet and the senior member of the family."