He had been created Baronet of St. Martin 's in the Fields on 31 May 1619 .
The first Baron Hervey was created in the Peerage of Ireland in 1620 when Sir William Hervey , 1st Baronet was made Baron Hervey , of Rosse in County Wexford .
William Hervey had been created 1st Baronet of St. Martin 's in the Fields on 31 May 1619 .
The first Baron Hervey was created in the Peerage of Ireland in 1620 when Sir William Hervey , 1st Baronet was made Baron Hervey , of Rosse in County Wexford .