S. Clementis Papae et Martyris ~ III. classis

Today is the Feast of St Clement, Pope and Martyr. The Collect of today's Mass follows and is adapted from arsorandi.

Gregem tuum, Pastor ætérne, placátus inténde: et, per beátum Cleméntem Mártyrem tuum atque Summum Pontíficem, perpétua protectióne custódi; quem totíus Ecclésiæ præstitísti esse pastórem.
Per Dominum nostrum Iesum Christum, Filium tuum: qui tecum vivit et regnat in unitate Spiritus Sancti Deus, per omnia saecula saeculorum.
R. Amen.

Look forgivingly on thy flock, Eternal Shepherd, and keep it in thy constant protection, by the intercession of blessed Clement thy Martyr and Sovereign Pontiff, whom thou didst constitute Shepherd of the whole Church.
Through Jesus Christ, thy Son our Lord, Who liveth and reigneth with thee, in the unity of the Holy Ghost, ever one God, world without end.
R. Amen.