Quadam die tempestate saevissima quassati

Source: 
The Poissy Antiphonal
Folio: 
202r
Sequence: 
4
Feast: 
Nicolai
Office/Mass: 
M
Genre: 
R
Position: 
1.3
Cantus ID: 
007453
Manuscript Reading Full Text (standardized spelling): 
Quadam die tempestate saevissima quassati nautae coeperunt sanctum vocare Nicolaum et statim cessavit tempestas