Forts and Cannon of Oman.

[fernando]

Originally Posted by Ibrahiim al Balooshi

...the exhibition which I believe were the result of comprehensive work by Dr Roads..

Correct; he was the mentor ... and his nephew was on the ground.

Originally Posted by Ibrahiim al Balooshi

Certainly I have Mirani and Jelali plus the towers at Muttrah as Portuguese, though, there must be at least influence if not involvement in other fortified projects..

Countless; either built, rebuilt or modified.
Built from the ground were, for example,
Kalba (Quelba) under Portuguese rule in the XVI century.
Khor Fakkan (Curfacão) in the Sharjah side, with its triangular fort already in ruins by 1666.
The you have Diba Hisn (Doba) (the smallest of three Dibas) which, as you know, was once Omani Capital. Under Portuguese rule from 1624 to 1648, it is beleived they built a fort there.
You also have Qurayyat (Curiate), conquered in 1507. Its rectangular fort built by the Arabs was rebuilt by the Portuguese in the last quarter XVI century.

One must refrain from quoting other examples, as the doubt remains in whether a fortification was Portuguese because the place was under their rule, or indeed was built or rebuilt by them ... something often unclear in citations.
Also to be taken into account that present decharacterization occurs when archelogic autorities, carrying restorations interventions, promote the islamization of certain aspects ... battlements and other.

Originally Posted by Ibrahiim al Balooshi

The question as to when these cannon arrived at the forts they are now in....

One thing inevitable to mind when you take over a medieval castle is to modify it for artillery purposes.
Cannons are heavy, but are portable ... and a vital asset in the period. They moved them a lot ... everywhere ... for the most varied reasons. You take them from you adversary when you win the battle and start using them yourself, you take them as a war trophy and you certainly take them from remote distances to exhibit them in a museum or at the door of somebody important.
One of the most formidable Muslim cannons that ever existed in India resides nowadays in Lisbon Military Museum

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