The present church, which consists of a chancel, nave with aisles, transepts, and a western tower, and the chapter–house on the north and the Beauchamp Chapel to the south of the chancel, presents a somewhat incongruous appearance owing to a reckless mixture of designs both inside and out. The interior, which has no special features of note, contains, however, a large number of eighteenth–century marble monuments of considerable interest, though unpretentious in character.

At the west end of the church is a bust of Walter Savage Landor the poet, who was born at Warwick on January 30, 1775, in the old–fashioned house just below East Gate, and died at Florence on September 17, 1864.

In the north transept, on the east side, near the door, is an interesting mural brass of the sixteenth century, with effigies of Thomas Oken and his wife Joan. The inscription, which is a quaint one, runs thus, “Of your charyte give thanks for the soules of Thomas Oken and Jone and his wyff, on whose soules Jesus hath mercy, Jesus hath mercy, Amen. Remember the charyte for the pore for ever. Ao dni: mccccclxxiii.”

This Thomas Oken, who was born of poor parents in the town, became very wealthy, and left estates of very considerable value for the endowment of local and educational charities.

On the north side of the entrance to the Beauchamp Chapel is a marble slab, on which are the incised brass effigies of the second Earl of Warwick, Thomas Beauchamp, and his Countess Margaret, who died in 1401 and 1406 respectively. The monument is an interesting one, as the effigies show the Earl clad in full armour, with his feet resting on a bear, whilst the Countess wears a low–bodied gown, over which is a long mantle–like garment fastened at the breast; on her head is a cap with her hair falling in long ringlets on to her shoulders; at her feet is a dog, wearing a collar of bells. This brass, which is valuable to students of costume and archæologists alike, was originally fixed to the upper portion of a high tomb, which stood at the eastern end of the aisle, and was destroyed in the Great Fire of 1694.

The chancel or choir is generally supposed to have been erected by the second Thomas Beauchamp about 1392. The style of the east window, however, and the panel–work of the exterior of the east wall makes it probable that these portions were at all events altered from their original state by Richard Beauchamp, the builder of the adjoining chapel.

On the north side of the altar is an interesting and originally groined recess, faced with three arches, which in all probability was used as “The Holy Sepulchre” during Passion Week in the olden times.

At St. Mary’s, Warwick, prior to the Reformation, the host and crucifix were borne in procession on Good Friday through the church to the north side of the chancel, after which they were deposited in the sepulchre, the door was then shut, and on that and the following night was watched by persons specially chosen for the purpose: in imitation, of course, of the soldiers set to guard the body of Christ. Early on Easter morning the host and crucifix were removed with great ceremonial, the priest pronouncing the words, “Surrexit, non est hic.”

The reredos is modern, as are also the carved oak stalls. In the middle of the choir is a high tomb, with the recumbent effigies of the first Thomas Beauchamp, Earl of Warwick, and founder of the choir, who died in 1369, with his Countess Catherine, who was a daughter of Roger Mortimer, Earl of March. The tomb is a very elaborate one, and around it are thirty–six niches, each one containing a figure supposed to represent a connection or descendant of the house of Beauchamp; the panels beneath the niches containing small shields with coats–of–arms, now, alas! greatly defaced.