Many people came to my grandmother's wake.
The wake will begin at 6 p.m.
お通夜 is the wake held the night before, while お葬式 is the main funeral ceremony itself, so learners often mix up which event comes first.
Standard polite spelling with honorific prefix お.
Formal or literary variant using the kanji 御 for the honorific prefix.
From 通夜 (つや, 'all-night vigil') with the polite prefix お added.