Mordant

[Wexflyer]

Maybe. Who knows?
That’s what the site owner believes about his ancestor - although I think it says ‘supposition’ but too much to read.

Personally, I think it is probably another example of the unfortunate tendency to collect "ancestors" simply on the basis that the names happen to match....

[heywood]

Perhaps you are right.

The Boolavogue marriage of Miles  Mordaunt of Ballintlea - father Denis may link the two places
https://civilrecords.irishgenealogy.ie/churchrecords/images/marriage_returns/marriages_1872/11310/8150128.pdf
but not necessarily.

I suppose all this is a problem for J B to try to solve though.

[Wexflyer]

Perhaps you are right.

The Boolavogue marriage of Miles  Mordaunt of Ballintlea - father Denis may link the two places
https://civilrecords.irishgenealogy.ie/churchrecords/images/marriage_returns/marriages_1872/11310/8150128.pdf
but not necessarily.

I suppose all this is a problem for J B to try to solve though.

That that marriage was in Boolavogue was simply because of the bride's address/home.  To me though, the marriage is significant in that Miles was still of Ballintlea -  evidence against Denis having moved.

[heywood]

Yes , of course, I realise that.
Here is Michael of Clone with father Denis.

https://civilrecords.irishgenealogy.ie/churchrecords/images/marriage_returns/marriages_1869/11442/8203186.pdf

However, we are digressing.

JB feels there is a connection with ‘Denis’ - brother and ancestor. There is a death for a Denis in 1868 which the article/s refer to so maybe there will be an answer then.

It’s all very interesting 

[Wexflyer]

Yes , of course, I realise that.
Here is Michael of Clone with father Denis.

https://civilrecords.irishgenealogy.ie/churchrecords/images/marriage_returns/marriages_1869/11442/8203186.pdf

However, we are digressing.

I think I can say that the Denis Mordaunt  living near Monamolin was not OP's relative or ancestor, unless there has been a massive memory loss in the family.

For the same holding that Denis held in 1852, in 1846 we see Denis crossed out, and Admiral Francis Mordaunt written in.
http://census.nationalarchives.ie/reels/vob/IRE_CENSUS_1821-51_007246842_00530.pdf

[heywood]

Very useful.

Does that mean that Denis had died and it had passed to Francis?

[heywood]

Looking at the various marriages which mention Denis as father and Clone, it looks as though he is the one who died 1868.
His daughter Hester married 1869 and that record shows Denis (deceased).

As the OP does not know where George (son of John) was born, we don’t seem to be any the sister.
The quote from the Mordaunt site, posted by shanreagh, places George as the son of John of Ramstown. 

[Wexflyer]

Very useful.

Does that mean that Denis had died and it had passed to Francis?

That would be the normal interpretation, but a Denis returns by 1852, so...?
- Denis, son of Denis?
- Or could be something more exotic, like Denis was actually holding the (quite good) farm and house, but the holding was technically held by his brother Francis? Who knows.
- Obviously the admiral should be pursued, but won't be by me!

There is more writing on the 1846 valuation, which I have not deciphered.

[heywood]

Nor me. There are too many Mordaunts in Wexford.