My third baby
Was named after Napoleon
But I changed her name to Eroica
When Napoleon became emperor.

My fifth child
Celebrated a victory bash.
The first phrase from her mouth
Was dot-dot-dot-dash.

I could not hear my children
As I grew older;
Yet, in my mind’s ear,
They were clearer than any human.

My ninth child
Cooed the song of Schiller
And sang of joy
To the whole world.

Who am I?
And who are my children?

Answer to Last Month’s Riddle: A sphinx!