Missa pro Defunctis: Requiem aeternam (Introitus)

From Giovanni Viannini, the Introit of the Gregorian Requiem Mass:

Requiem æternam dona eis, Domine,
et lux perpetua luceat eis.
Te decet hymnus Deus, in Sion,
et tibi reddetur votum in Ierusalem.
Exaudi orationem meam;
ad te omnis caro veniet.
Requiem æternam dona eis, Domine,
et lux perpetua luceat eis.

Eternal rest grant unto them, O Lord,
and let perpetual light shine upon them.
A hymn becomes you, O God, in Zion,
and to you shall a vow be repaid in Jerusalem.
Hear my prayer;
to you shall all flesh come.
Eternal rest grant unto them, O Lord,
and let perpetual light shine upon them.”