The phrase "although reportedly" is correct and usable in written English.
It can be used to introduce a statement that contrasts with or qualifies a previous assertion, often indicating that the information is based on reports or hearsay.
Example: "The project was deemed a success, although reportedly it faced several significant challenges during development."
Alternatives: "even though it is said" or "despite being reported".
Oudin's 5-foot-5 role model, Justine Henin of Belgium, is retired, although reportedly weighing the possibility of a comeback.
He claimed £22 for four hours per week on his expenses, although reportedly he may have paid her a bit more.
Although reportedly the highest-paid actor in Europe in 1967, he retired two years later to his estate in California to raise Morgan horses.
Cemented by the bond of creative arts and shared affection for Ms. Flöge's niece — Gertrude Flöge, known as Trudie — Gustav Klimt and Emilie Flöge became lifelong companions (although reportedly not lovers) and spent their summers together at the Attersee.
Although reportedly missing both an eye and a leg, Billings was active as an itinerant singing master and was influential in furthering the singing-school tradition of American folk culture.
The NIS findings, although reportedly based on "multiple sources", are themselves an extrapolation from reports that two close advisers to Mr Chang were publicly executed in November for economic corruption-related offences.
Although juniper reportedly contains several diterpenic compounds, no studies have addressed the diterpenic composition of juniper-based spirits or beverages.
Although NBC reportedly contemplated picking up the show, it has opted not to.
They have grown vastly since, although students reportedly still take their lessons sat under trees.
Although repatriations reportedly surged early in 2018, recent data suggests that the volume has since dropped to levels comparable to those prior to the TCJA's enactment.
The shell lengths of few individuals exceed 1.6 metres (5 feet), although some reportedly reach 2.4 metres (8 feet).
