Piotr wrote

> John, the Cross of St. David is actually gold on black, and it's

never been included in the Union Jack design. The reason for that
must be that it's never been flown much in Wales itself, where Y
Ddraig Goch has always been used as the national flag.

>

Thank for this Piotr. Following your post I managed to find this

"The gold cross on black of St David has, as far as I know, never had
an official status in Wales. The nearest to it was that it was used
by Anglican churches in Wales before disestablishment in 1921. I have
never seen it flying - the nearest was a banner of the arms of the
diocese of St David's which flew from my college on St David's day.
The only written reference for the gold-and-black flag I have seen is
in Carr (1961). Roy Stilling, 21 November 1995

According to Carr (1961), Flags of the World, a black cross on gold
was used by Welsh Anglican churches until 1954. '[It] is said to have
been taken from the arms of the manors of Llawhaden and Pebidiog
(anciently known as Dewisland [NB: Dewi Sant is the Welsh for St
David]), of which the early bishops of St David's were barons' (p66).
This, of course, is the reverse of the gold cross on black flag
previously mentioned.

However, the arms of the bishopric of St David's are a gold cross on
black, like the flag mentioned, but with four outline black
cinquefoils in the arms of the cross. I spent three years in Wales at
university and I too never saw a cruciform flag being flown instead
of the Red Dragon. However, on St David's Day (1st March), my
college - St David's University College, Lampeter (Coleg Prifysgol
Dewi Sant, Llanbedr Pont Steffan for any Welsh-speakers) - flew a
banner of the arms of St David's."
Roy Stilling, 3 September 1996

Stilling also speaks of how "A different flag is used by the Church
in Wales: a white flag with a black [or blue, according to the image
he gives] cross, and a gold Celtic cross emblem inside the cross. It
is described as being in accordance with the Grant of Arms of 9
December 1954; a white field charged with a royal blue St George's
cross, and in the centre thereof a Celtic Cross in gold. It was to
replace the flag which had been in use since 1936; a black cross on a
golden field said to have been taken from the arms of the manors of
Llawhaden and Pebidiog (anciently known as Dewisland), of which the
early Bishops of St David's were barons."

http://fotw.vexillum.com/flags/gb-wa-ch.html

Regards

John